Add ARM test suite trigger commands to mass comment script (#27982)

release/src/main/scripts/github_actions_jobs.txt

@@ -0,0 +1,8 @@
+Run Go PostCommit Dataflow ARM
+Run Java_Examples_Dataflow_ARM PostCommit 8
+Run Java_Examples_Dataflow_ARM PostCommit 11
+Run Java_Examples_Dataflow_ARM PostCommit 17
+Run Python ValidatesContainer Dataflow ARM 3.8
+Run Python ValidatesContainer Dataflow ARM 3.9
+Run Python ValidatesContainer Dataflow ARM 3.10
+Run Python ValidatesContainer Dataflow ARM 3.11

release/src/main/scripts/mass_comment.py

@@ -125,6 +125,19 @@ def getRemainingComments(accessToken, pr, initialComments):
       remainingComments.append(comment)
   return remainingComments
 
+def getGithubActionsTriggerCommands(dirname):
+  '''
+  Returns all trigger commands that will start PostCommit Dataflow ARM Github Actions test suites.
+  '''
+  gha_trigger_commands = []
+
+  with open(os.path.join(dirname, 'github_actions_jobs.txt')) as file:
+    comments = [line.strip() for line in file if len(line.strip()) > 0]
+
+  for i in range(len(comments)):
+    gha_trigger_commands.append(comments[i])
+
+  return gha_trigger_commands
 
 ################################################################################
 if __name__ == '__main__':
@@ -142,7 +155,10 @@ def getRemainingComments(accessToken, pr, initialComments):
   for i in range(len(comments)):
     parts = comments[i].split(',')
     comments[i] = (parts[0], parts[1])
-
+
+  gha_comments = getGithubActionsTriggerCommands(dirname)
+  comments.extend(gha_comments)
+
   if not probeGitHubIsUp():
     print("GitHub is unavailable, skipping fetching data.")
     exit()
@@ -173,4 +189,4 @@ def getRemainingComments(accessToken, pr, initialComments):
       print(f'{len(remainingComments)} comments still must be reposted: {str(remainingComments)}')
       print('Trying to repost comments.')
 
-  print('Done.')
+  print('Done.')