Fix: create retry_files_save_path if it doesn't exist (#15659)

* Fix: create retry_files_save_path if it doesn't exist

Ansible documentation states that retry_files_save_path directory will be
created if it does not already exist. It currently doesn't, so this patch
fixes it :)

* Use makedirs_safe to ensure thread-safe dir creation

@bcoca suggested to use the makedirs_safe helper function :)

(cherry picked from commit 828b73dd2d)

lib/ansible/executor/playbook_executor.py

@@ -27,6 +27,7 @@ from ansible import constants as C
 from ansible.executor.task_queue_manager import TaskQueueManager
 from ansible.playbook import Playbook
 from ansible.template import Templar
+from ansible.utils.path import makedirs_safe
 from ansible.utils.unicode import to_unicode
 
 try:
@@ -257,6 +258,7 @@ class PlaybookExecutor:
         re-running on ONLY the failed hosts.  This may duplicate some variable
         information in group_vars/host_vars but that is ok, and expected.
         '''
+        makedirs_safe(os.path.dirname(retry_path))
 
         try:
             with open(retry_path, 'w') as fd: