feat: Query the old action runs in DB (#26219)

As the Issue (#26219) mentioned, this is a database-level support to
query the obsolete actions runs.

I'll temporarily add a draft for further work.

Author: cclvi256

models/actions/run.go

@@ -377,6 +377,23 @@ func GetLatestRun(ctx context.Context, repoID int64) (*ActionRun, error) {
 	return run, nil
 }
 
+func GetRunsBeforeDate(ctx context.Context, repoID int64, beforeDate time.Time) ([]*ActionRun, error) {
+	var runs []*ActionRun
+	err := db.GetEngine(ctx).
+			Where("repo_id = ?", repoID).
+			And("created < ?", beforeDate).
+			Find(&runs)
+	if err != nil {
+			return nil, err
+	}
+	return runs, nil
+}
+
+func GetObsoleteRuns(ctx context.Context, repoID int64, days int) ([]*ActionRun, error) {
+	thresholdDate := time.Now().AddDate(0, 0, -days)
+	return GetRunsBeforeDate(ctx, repoID, thresholdDate)
+}
+
 func GetWorkflowLatestRun(ctx context.Context, repoID int64, workflowFile, branch, event string) (*ActionRun, error) {
 	var run ActionRun
 	q := db.GetEngine(ctx).Where("repo_id=?", repoID).