Artifacts download api for artifact actions v4 (#33510)

* download endpoint has to use 302 redirect
* fake blob download used if direct download not possible
* downloading v3 artifacts not possible

New repo apis based on GitHub Rest V3
- GET /runs/{run}/artifacts (Cannot use run index of url due to not
being unique)
- GET /artifacts
- GET + DELETE /artifacts/{artifact_id}
- GET /artifacts/{artifact_id}/zip
- (GET /artifacts/{artifact_id}/zip/raw this is a workaround for a http
302 assertion in actions/toolkit)
- api docs removed this is protected by a signed url like the internal
artifacts api and no longer usable with any token or swagger
  - returns http 401 if the signature is invalid
    - or change the artifact id
    - or expired after 1 hour

Closes #33353
Closes #32124

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/structs/repo_actions.go

@@ -65,3 +65,34 @@ type ActionWorkflowResponse struct {
 	Workflows  []*ActionWorkflow `json:"workflows"`
 	TotalCount int64             `json:"total_count"`
 }
+
+// ActionArtifact represents a ActionArtifact
+type ActionArtifact struct {
+	ID                 int64              `json:"id"`
+	Name               string             `json:"name"`
+	SizeInBytes        int64              `json:"size_in_bytes"`
+	URL                string             `json:"url"`
+	ArchiveDownloadURL string             `json:"archive_download_url"`
+	Expired            bool               `json:"expired"`
+	WorkflowRun        *ActionWorkflowRun `json:"workflow_run"`
+
+	// swagger:strfmt date-time
+	CreatedAt time.Time `json:"created_at"`
+	// swagger:strfmt date-time
+	UpdatedAt time.Time `json:"updated_at"`
+	// swagger:strfmt date-time
+	ExpiresAt time.Time `json:"expires_at"`
+}
+
+// ActionWorkflowRun represents a WorkflowRun
+type ActionWorkflowRun struct {
+	ID           int64  `json:"id"`
+	RepositoryID int64  `json:"repository_id"`
+	HeadSha      string `json:"head_sha"`
+}
+
+// ActionArtifactsResponse returns ActionArtifacts
+type ActionArtifactsResponse struct {
+	Entries    []*ActionArtifact `json:"artifacts"`
+	TotalCount int64             `json:"total_count"`
+}