Fix PushEvent NullPointerException jenkinsci/github-plugin (#27203)

Fixes #27202

Author: Nabapadma-sarker

modules/structs/repo.go

@@ -63,6 +63,7 @@ type Repository struct {
 	Language      string      `json:"language"`
 	LanguagesURL  string      `json:"languages_url"`
 	HTMLURL       string      `json:"html_url"`
+	URL           string      `json:"url"`
 	Link          string      `json:"link"`
 	SSHURL        string      `json:"ssh_url"`
 	CloneURL      string      `json:"clone_url"`

services/convert/repository.go

@@ -181,6 +181,7 @@ func innerToRepo(ctx context.Context, repo *repo_model.Repository, permissionInR
 		Parent:                        parent,
 		Mirror:                        repo.IsMirror,
 		HTMLURL:                       repo.HTMLURL(),
+		URL:                           repoAPIURL,
 		SSHURL:                        cloneLink.SSH,
 		CloneURL:                      cloneLink.HTTPS,
 		OriginalURL:                   repo.SanitizedOriginalURL(),