[Vendor] upgrade google/go-github to v32.1.0 (#12361) (#12390)

* upgrate go-github client to v32.1.0

* migrate

vendor/github.com/google/go-github/v32/github/doc.go

@@ -0,0 +1,188 @@
+// Copyright 2013 The go-github AUTHORS. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package github provides a client for using the GitHub API.
+
+Usage:
+
+	import "github.com/google/go-github/v32/github"	// with go modules enabled (GO111MODULE=on or outside GOPATH)
+	import "github.com/google/go-github/github"     // with go modules disabled
+
+Construct a new GitHub client, then use the various services on the client to
+access different parts of the GitHub API. For example:
+
+	client := github.NewClient(nil)
+
+	// list all organizations for user "willnorris"
+	orgs, _, err := client.Organizations.List(ctx, "willnorris", nil)
+
+Some API methods have optional parameters that can be passed. For example:
+
+	client := github.NewClient(nil)
+
+	// list public repositories for org "github"
+	opt := &github.RepositoryListByOrgOptions{Type: "public"}
+	repos, _, err := client.Repositories.ListByOrg(ctx, "github", opt)
+
+The services of a client divide the API into logical chunks and correspond to
+the structure of the GitHub API documentation at
+https://developer.github.com/v3/.
+
+NOTE: Using the https://godoc.org/context package, one can easily
+pass cancelation signals and deadlines to various services of the client for
+handling a request. In case there is no context available, then context.Background()
+can be used as a starting point.
+
+For more sample code snippets, head over to the https://github.com/google/go-github/tree/master/example directory.
+
+Authentication
+
+The go-github library does not directly handle authentication. Instead, when
+creating a new client, pass an http.Client that can handle authentication for
+you. The easiest and recommended way to do this is using the golang.org/x/oauth2
+library, but you can always use any other library that provides an http.Client.
+If you have an OAuth2 access token (for example, a personal API token), you can
+use it with the oauth2 library using:
+
+	import "golang.org/x/oauth2"
+
+	func main() {
+		ctx := context.Background()
+		ts := oauth2.StaticTokenSource(
+			&oauth2.Token{AccessToken: "... your access token ..."},
+		)
+		tc := oauth2.NewClient(ctx, ts)
+
+		client := github.NewClient(tc)
+
+		// list all repositories for the authenticated user
+		repos, _, err := client.Repositories.List(ctx, "", nil)
+	}
+
+Note that when using an authenticated Client, all calls made by the client will
+include the specified OAuth token. Therefore, authenticated clients should
+almost never be shared between different users.
+
+See the oauth2 docs for complete instructions on using that library.
+
+For API methods that require HTTP Basic Authentication, use the
+BasicAuthTransport.
+
+GitHub Apps authentication can be provided by the
+https://github.com/bradleyfalzon/ghinstallation package.
+
+	import "github.com/bradleyfalzon/ghinstallation"
+
+	func main() {
+		// Wrap the shared transport for use with the integration ID 1 authenticating with installation ID 99.
+		itr, err := ghinstallation.NewKeyFromFile(http.DefaultTransport, 1, 99, "2016-10-19.private-key.pem")
+		if err != nil {
+			// Handle error.
+		}
+
+		// Use installation transport with client
+		client := github.NewClient(&http.Client{Transport: itr})
+
+		// Use client...
+	}
+
+Rate Limiting
+
+GitHub imposes a rate limit on all API clients. Unauthenticated clients are
+limited to 60 requests per hour, while authenticated clients can make up to
+5,000 requests per hour. The Search API has a custom rate limit. Unauthenticated
+clients are limited to 10 requests per minute, while authenticated clients
+can make up to 30 requests per minute. To receive the higher rate limit when
+making calls that are not issued on behalf of a user,
+use UnauthenticatedRateLimitedTransport.
+
+The returned Response.Rate value contains the rate limit information
+from the most recent API call. If a recent enough response isn't
+available, you can use RateLimits to fetch the most up-to-date rate
+limit data for the client.
+
+To detect an API rate limit error, you can check if its type is *github.RateLimitError:
+
+	repos, _, err := client.Repositories.List(ctx, "", nil)
+	if _, ok := err.(*github.RateLimitError); ok {
+		log.Println("hit rate limit")
+	}
+
+Learn more about GitHub rate limiting at
+https://developer.github.com/v3/#rate-limiting.
+
+Accepted Status
+
+Some endpoints may return a 202 Accepted status code, meaning that the
+information required is not yet ready and was scheduled to be gathered on
+the GitHub side. Methods known to behave like this are documented specifying
+this behavior.
+
+To detect this condition of error, you can check if its type is
+*github.AcceptedError:
+
+	stats, _, err := client.Repositories.ListContributorsStats(ctx, org, repo)
+	if _, ok := err.(*github.AcceptedError); ok {
+		log.Println("scheduled on GitHub side")
+	}
+
+Conditional Requests
+
+The GitHub API has good support for conditional requests which will help
+prevent you from burning through your rate limit, as well as help speed up your
+application. go-github does not handle conditional requests directly, but is
+instead designed to work with a caching http.Transport. We recommend using
+https://github.com/gregjones/httpcache for that.
+
+Learn more about GitHub conditional requests at
+https://developer.github.com/v3/#conditional-requests.
+
+Creating and Updating Resources
+
+All structs for GitHub resources use pointer values for all non-repeated fields.
+This allows distinguishing between unset fields and those set to a zero-value.
+Helper functions have been provided to easily create these pointers for string,
+bool, and int values. For example:
+
+	// create a new private repository named "foo"
+	repo := &github.Repository{
+		Name:    github.String("foo"),
+		Private: github.Bool(true),
+	}
+	client.Repositories.Create(ctx, "", repo)
+
+Users who have worked with protocol buffers should find this pattern familiar.
+
+Pagination
+
+All requests for resource collections (repos, pull requests, issues, etc.)
+support pagination. Pagination options are described in the
+github.ListOptions struct and passed to the list methods directly or as an
+embedded type of a more specific list options struct (for example
+github.PullRequestListOptions). Pages information is available via the
+github.Response struct.
+
+	client := github.NewClient(nil)
+
+	opt := &github.RepositoryListByOrgOptions{
+		ListOptions: github.ListOptions{PerPage: 10},
+	}
+	// get all pages of results
+	var allRepos []*github.Repository
+	for {
+		repos, resp, err := client.Repositories.ListByOrg(ctx, "github", opt)
+		if err != nil {
+			return err
+		}
+		allRepos = append(allRepos, repos...)
+		if resp.NextPage == 0 {
+			break
+		}
+		opt.Page = resp.NextPage
+	}
+
+*/
+package github