github_repo: deprecate force_defaults=true (#10435)

* github_repo: deprecate force_defaults=true

* add changelog frag

changelogs/fragments/10435-github-repo-deprecate-force-defaults.yml

@@ -0,0 +1,2 @@
+deprecated_features:
+  - github_repo - deprecate ``force_defaults=true`` (https://github.com/ansible-collections/community.general/pull/10435).

plugins/modules/github_repo.py

@@ -83,11 +83,9 @@ options:
     version_added: "3.5.0"
   force_defaults:
     description:
-      - Overwrite current O(description) and O(private) attributes with defaults if set to V(true), which currently is the
+      - If V(true), overwrite current O(description) and O(private) attributes with defaults.
-        default.
+      - V(true) is deprecated for this option and will not be allowed starting in community.general 13.0.0. V(false) will be the default value then.
-      - The default for this option will be deprecated in a future version of this collection, and eventually change to V(false).
     type: bool
-    default: true
     required: false
     version_added: 4.1.0
 requirements:
@@ -252,7 +250,7 @@ def main():
         private=dict(type='bool'),
         description=dict(type='str'),
         api_url=dict(type='str', default='https://api.github.com'),
-        force_defaults=dict(type='bool', default=True),
+        force_defaults=dict(type='bool'),
     )
     module = AnsibleModule(
         argument_spec=module_args,
@@ -262,6 +260,11 @@ def main():
         mutually_exclusive=[('username', 'access_token')]
     )
 
+    if module.params['force_defaults'] is None:
+        module.deprecate("'force_defaults=true' is deprecated and will not be allowed in community.general 13.0.0, use 'force_defaults=false' instead",
+                         version="13.0.0", collection_name="community.general")
+        module.params['force_defaults'] = True
+
     if not HAS_GITHUB_PACKAGE:
         module.fail_json(msg=missing_required_lib(
             "PyGithub"), exception=GITHUB_IMP_ERR)