feature(go-git-v5): Update go-git to v5 and improve repository handling

Migrated from go-git v4 to v5 for improved stability and features. Enhanced the repository handling by adding detailed logging, updating submodules after checkouts, and refactoring username retrieval for Git providers.

jobs/commands/checkout_repository.go

@@ -166,7 +166,7 @@ func updateSubmodules(repository *git.Repository, username, repoProviderToken st
 			},
 		})
 		if err != nil {
-			return fmt.Errorf("error updating submodules: %s", err)
+			return fmt.Errorf("error updating submodule: %s: %s", submodule.Config().Path, err)
 		}
 
 		io.WriteString(logsWriter, fmt.Sprintf("Submodule %s updated successfully\n", submodule.Config().Path))