fix: Add secret to all webhook's payload where it has been missing (#5208)

* Updated dependency manager via `dep ensure -update code.gitea.io/sdk`
* Gopkg.toml was not changed as sdk version is set to "master"
* affects webhooks for: Delete, Fork, IssueComment, Release
* also contains changes from go-gitea/go-sdk#125 and hence a swagger update

Signed-off-by: Berengar W. Lehr <Berengar.Lehr@kompetenztest.de>
Resolves: #4732, #5173

vendor/code.gitea.io/sdk/gitea/repo_key.go

@@ -13,13 +13,16 @@ import (
 
 // DeployKey a deploy key
 type DeployKey struct {
-	ID    int64  `json:"id"`
-	Key   string `json:"key"`
-	URL   string `json:"url"`
-	Title string `json:"title"`
+	ID          int64  `json:"id"`
+	KeyID       int64  `json:"key_id"`
+	Key         string `json:"key"`
+	URL         string `json:"url"`
+	Title       string `json:"title"`
+	Fingerprint string `json:"fingerprint"`
 	// swagger:strfmt date-time
-	Created  time.Time `json:"created_at"`
-	ReadOnly bool      `json:"read_only"`
+	Created    time.Time   `json:"created_at"`
+	ReadOnly   bool        `json:"read_only"`
+	Repository *Repository `json:"repository,omitempty"`
 }
 
 // ListDeployKeys list all the deploy keys of one repository