Sort based on the Task Key specified in the 'Depends On' field (#3000)

* add sort task dependency by key

* add task depend on into test code

* refactor task depends on sort logic

jobs/resource_job.go

@@ -291,6 +291,9 @@ func (js *JobSettings) sortTasksByKey() {
 func (js *JobSettings) adjustTasks() {
 	js.sortTasksByKey()
 	for _, task := range js.Tasks {
+		sort.Slice(task.DependsOn, func(i, j int) bool {
+			return task.DependsOn[i].TaskKey < task.DependsOn[j].TaskKey
+		})
 		sortWebhookNotifications(task.WebhookNotifications)
 	}
 }

jobs/resource_job_test.go

@@ -459,6 +459,11 @@ func TestResourceJobCreate_JobClusters(t *testing.T) {
 								NodeTypeID:   "b",
 								NumWorkers:   3,
 							},
+							DependsOn: []jobs.TaskDependency{
+								{
+									TaskKey: "a",
+								},
+							},
 							NotebookTask: &NotebookTask{
 								NotebookPath: "/Stuff",
 							},
@@ -537,6 +542,10 @@ func TestResourceJobCreate_JobClusters(t *testing.T) {
 		task {
 			task_key = "b"
 
+			depends_on {
+				task_key = "a"
+			}
+
 			new_cluster {
 				spark_version = "a"
 				node_type_id = "b"