Fix bugs in rerunning jobs (#29955)

Fix #28761
Fix #27884
Fix #28093

## Changes

### Rerun all jobs
When rerun all jobs, status of the jobs with `needs` will be set to
`blocked` instead of `waiting`. Therefore, these jobs will not run until
the required jobs are completed.

### Rerun a single job
When a single job is rerun, its dependents should also be rerun, just
like GitHub does
(https://github.com/go-gitea/gitea/issues/28761#issuecomment-2008620820).
In this case, only the specified job will be set to `waiting`, its
dependents will be set to `blocked` to wait the job.

### Show warning if every job has `needs`
If every job in a workflow has `needs`, all jobs will be blocked and no
job can be run. So I add a warning message.

<img
src="88f43511-2360-465d-be96-ee92b57ff67b"
width="480px" />

(cherry picked from commit 2f060c5834d81f0317c795fc281f9a07e03e5962)

services/actions/rerun.go

@@ -0,0 +1,38 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package actions
+
+import (
+	actions_model "code.gitea.io/gitea/models/actions"
+	"code.gitea.io/gitea/modules/container"
+)
+
+// GetAllRerunJobs get all jobs that need to be rerun when job should be rerun
+func GetAllRerunJobs(job *actions_model.ActionRunJob, allJobs []*actions_model.ActionRunJob) []*actions_model.ActionRunJob {
+	rerunJobs := []*actions_model.ActionRunJob{job}
+	rerunJobsIDSet := make(container.Set[string])
+	rerunJobsIDSet.Add(job.JobID)
+
+	for {
+		found := false
+		for _, j := range allJobs {
+			if rerunJobsIDSet.Contains(j.JobID) {
+				continue
+			}
+			for _, need := range j.Needs {
+				if rerunJobsIDSet.Contains(need) {
+					found = true
+					rerunJobs = append(rerunJobs, j)
+					rerunJobsIDSet.Add(j.JobID)
+					break
+				}
+			}
+		}
+		if !found {
+			break
+		}
+	}
+
+	return rerunJobs
+}