Fix issues with ansible-playbook-callbacks test

The timing of the async tasks was a little unpredictable, meaning that
sometimes we would get an unexpected number of v2_runner_on_async_poll
callbacks, and fail the test. This change fixes the issue by increasing
the poll interval to 2 seconds and the sleep to 3 seconds, such that on
a reasonable responsive system we will poll twice per task.

The include_me.yml file does not exist in this integration test.

The remote_tmp_dir.path expression is invalid - the setup_remote_tmp_dir
role uses set_fact to set remote_tmp_dir to remote_tmp_dir.path.

The integration tests run with ANSIBLE_HOST_PATTERN_MISMATCH=error,
meaning that the final play was never reached. Remove the play with the
invalid host pattern.

test/integration/targets/ansible-playbook-callbacks/all-callbacks.yml

@@ -96,26 +96,22 @@
       ignore_errors: true
 
     - name: async poll ok
-      command: sleep 2
-      async: 3
-      poll: 1
+      command: sleep 3
+      async: 5
+      poll: 2
 
     - name: async poll failed
-      shell: sleep 2; false
-      async: 3
-      poll: 1
+      shell: sleep 3; false
+      async: 5
+      poll: 2
       ignore_errors: true
 
-    - include_tasks: include_me.yml
-
     - name: diff
       copy:
         content: diff
-        dest: '{{ remote_tmp_dir.path }}/diff.txt'
+        dest: '{{ remote_tmp_dir }}/diff.txt'
       diff: true
 
-- hosts: i_dont_exist
-
 - hosts: localhost
   gather_facts: false
   max_fail_percentage: 0

test/integration/targets/ansible-playbook-callbacks/callbacks_list.expected

@@ -1,12 +1,13 @@
  1 __init__
-83 v2_on_any
+87 v2_on_any
+ 1 v2_on_file_diff
  4 v2_playbook_on_handler_task_start
  2 v2_playbook_on_include
  3 v2_playbook_on_notify
- 1 v2_playbook_on_play_start
+ 2 v2_playbook_on_play_start
  1 v2_playbook_on_start
  1 v2_playbook_on_stats
-17 v2_playbook_on_task_start
+18 v2_playbook_on_task_start
  1 v2_playbook_on_vars_prompt
  1 v2_runner_item_on_failed
  2 v2_runner_item_on_ok
@@ -17,6 +18,6 @@
  5 v2_runner_on_failed
 15 v2_runner_on_ok
  1 v2_runner_on_skipped
-21 v2_runner_on_start
+22 v2_runner_on_start
  1 v2_runner_on_unreachable
  2 v2_runner_retry