Fix missing outputs for jobs with matrix (#32823)

Fix #32795

If a job uses a matrix, multiple `ActionRunJobs` may have the same
`JobID`. We need to merge the outputs of these jobs to make them
available to the jobs that need them.

models/fixtures/action_run.yml

@@ -36,3 +36,22 @@
   updated: 1683636626
   need_approval: 0
   approved_by: 0
+-
+  id: 793
+  title: "job output"
+  repo_id: 4
+  owner_id: 1
+  workflow_id: "test.yaml"
+  index: 189
+  trigger_user_id: 1
+  ref: "refs/heads/master"
+  commit_sha: "c2d72f548424103f01ee1dc02889c1e2bff816b0"
+  event: "push"
+  is_fork_pull_request: 0
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+  created: 1683636108
+  updated: 1683636626
+  need_approval: 0
+  approved_by: 0

models/fixtures/action_run_job.yml

@@ -26,3 +26,46 @@
   status: 1
   started: 1683636528
   stopped: 1683636626
+-
+  id: 194
+  run_id: 793
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  name: job1 (1)
+  attempt: 1
+  job_id: job1
+  task_id: 49
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+-
+  id: 195
+  run_id: 793
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  name: job1 (2)
+  attempt: 1
+  job_id: job1
+  task_id: 50
+  status: 1
+  started: 1683636528
+  stopped: 1683636626
+-
+  id: 196
+  run_id: 793
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  name: job2
+  attempt: 1
+  job_id: job2
+  needs: [job1]
+  task_id: 51
+  status: 5
+  started: 1683636528
+  stopped: 1683636626

models/fixtures/action_task.yml

@@ -57,3 +57,63 @@
   log_length: 707
   log_size: 90179
   log_expired: 0
+-
+  id: 49
+  job_id: 194
+  attempt: 1
+  runner_id: 1
+  status: 1 # success
+  started: 1683636528
+  stopped: 1683636626
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  token_hash: b8d3962425466b6709b9ac51446f93260c54afe8e7b6d3686e34f991fb8a8953822b0deed86fe41a103f34bc48dbc4784220
+  token_salt: ffffffffff
+  token_last_eight: ffffffff
+  log_filename: artifact-test2/2f/47.log
+  log_in_storage: 1
+  log_length: 707
+  log_size: 90179
+  log_expired: 0
+-
+  id: 50
+  job_id: 195
+  attempt: 1
+  runner_id: 1
+  status: 1 # success
+  started: 1683636528
+  stopped: 1683636626
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  token_hash: b8d3962425466b6709b9ac51446f93260c54afe8e7b6d3686e34f991fb8a8953822b0deed86fe41a103f34bc48dbc4784221
+  token_salt: ffffffffff
+  token_last_eight: ffffffff
+  log_filename: artifact-test2/2f/47.log
+  log_in_storage: 1
+  log_length: 707
+  log_size: 90179
+  log_expired: 0
+-
+  id: 51
+  job_id: 196
+  attempt: 1
+  runner_id: 1
+  status: 6 # running
+  started: 1683636528
+  stopped: 1683636626
+  repo_id: 4
+  owner_id: 1
+  commit_sha: c2d72f548424103f01ee1dc02889c1e2bff816b0
+  is_fork_pull_request: 0
+  token_hash: b8d3962425466b6709b9ac51446f93260c54afe8e7b6d3686e34f991fb8a8953822b0deed86fe41a103f34bc48dbc4784222
+  token_salt: ffffffffff
+  token_last_eight: ffffffff
+  log_filename: artifact-test2/2f/47.log
+  log_in_storage: 1
+  log_length: 707
+  log_size: 90179
+  log_expired: 0

models/fixtures/action_task_output.yml

@@ -0,0 +1,20 @@
+-
+  id: 1
+  task_id: 49
+  output_key: output_a
+  output_value: abc
+-
+  id: 2
+  task_id: 49
+  output_key: output_b
+  output_value: ''
+-
+  id: 3
+  task_id: 50
+  output_key: output_a
+  output_value: ''
+-
+  id: 4
+  task_id: 50
+  output_key: output_b
+  output_value: bbb