Support Actions concurrency syntax (#32751)

Fix #24769
Fix #32662
Fix #33260

Depends on https://gitea.com/gitea/act/pulls/124

-
https://docs.github.com/en/actions/writing-workflows/workflow-syntax-for-github-actions#concurrency

## ⚠️ BREAKING ⚠️

This PR removes the auto-cancellation feature added by #25716. Users
need to manually add `concurrency` to workflows to control concurrent
workflows or jobs.

---------

Signed-off-by: Zettat123 <zettat123@gmail.com>
Co-authored-by: Christopher Homberger <christopher.homberger@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/actions/schedule_tasks.go

@@ -53,20 +53,6 @@ func startTasks(ctx context.Context) error {
 
 		// Loop through each spec and create a schedule task for it
 		for _, row := range specs {
-			// cancel running jobs if the event is push
-			if row.Schedule.Event == webhook_module.HookEventPush {
-				// cancel running jobs of the same workflow
-				if err := CancelPreviousJobs(
-					ctx,
-					row.RepoID,
-					row.Schedule.Ref,
-					row.Schedule.WorkflowID,
-					webhook_module.HookEventSchedule,
-				); err != nil {
-					log.Error("CancelPreviousJobs: %v", err)
-				}
-			}
-
 			if row.Repo.IsArchived {
 				// Skip if the repo is archived
 				continue
@@ -144,9 +130,19 @@ func CreateScheduleTask(ctx context.Context, cron *actions_model.ActionSchedule)
 	if err != nil {
 		return err
 	}
+	wfRawConcurrency, err := jobparser.ReadWorkflowRawConcurrency(cron.Content)
+	if err != nil {
+		return err
+	}
+	if wfRawConcurrency != nil {
+		err = EvaluateRunConcurrencyFillModel(ctx, run, wfRawConcurrency, vars)
+		if err != nil {
+			return fmt.Errorf("EvaluateRunConcurrencyFillModel: %w", err)
+		}
+	}
 
 	// Insert the action run and its associated jobs into the database
-	if err := actions_model.InsertRun(ctx, run, workflows); err != nil {
+	if err := InsertRun(ctx, run, workflows); err != nil {
 		return err
 	}
 	allJobs, err := db.Find[actions_model.ActionRunJob](ctx, actions_model.FindRunJobOptions{RunID: run.ID})