chore(actions): support cron schedule task (#26655)

Replace #22751 

1. only support the default branch in the repository setting.
2. autoload schedule data from the schedule table after starting the
service.
3. support specific syntax like `@yearly`, `@monthly`, `@weekly`,
`@daily`, `@hourly`

## How to use

See the [GitHub Actions
document](https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule)
for getting more detailed information.

```yaml
on:
  schedule:
    - cron: '30 5 * * 1,3'
    - cron: '30 5 * * 2,4'

jobs:
  test_schedule:
    runs-on: ubuntu-latest
    steps:
      - name: Not on Monday or Wednesday
        if: github.event.schedule != '30 5 * * 1,3'
        run: echo "This step will be skipped on Monday and Wednesday"
      - name: Every time
        run: echo "This step will always run"
```

Signed-off-by: Bo-Yi.Wu <appleboy.tw@gmail.com>

---------


Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

services/cron/tasks_actions.go

@@ -18,6 +18,7 @@ func initActionsTasks() {
 	registerStopZombieTasks()
 	registerStopEndlessTasks()
 	registerCancelAbandonedJobs()
+	registerScheduleTasks()
 }
 
 func registerStopZombieTasks() {
@@ -49,3 +50,16 @@ func registerCancelAbandonedJobs() {
 		return actions_service.CancelAbandonedJobs(ctx)
 	})
 }
+
+// registerScheduleTasks registers a scheduled task that runs every minute to start any due schedule tasks.
+func registerScheduleTasks() {
+	// Register the task with a unique name, enabled status, and schedule for every minute.
+	RegisterTaskFatal("start_schedule_tasks", &BaseConfig{
+		Enabled:    true,
+		RunAtStart: false,
+		Schedule:   "@every 1m",
+	}, func(ctx context.Context, _ *user_model.User, cfg Config) error {
+		// Call the function to start schedule tasks and pass the context.
+		return actions_service.StartScheduleTasks(ctx)
+	})
+}