Avoid deprecated functionality. (#174)

Author: felixfontein

changelogs/fragments/174-deprecations.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - "Avoid deprecated functionality in ansible-core 2.20 (https://github.com/ansible-collections/community.hrobot/pull/174)."

plugins/plugin_utils/unsafe.py

@@ -8,7 +8,7 @@
 import re
 
 from ansible.module_utils.six import binary_type, text_type
-from ansible.module_utils.common._collections_compat import Mapping, Set
+from collections.abc import Mapping, Set
 from ansible.module_utils.common.collections import is_sequence
 from ansible.utils.unsafe_proxy import (
     AnsibleUnsafe,