fix: resolve sanity test failures for inventory plugin

- Remove unsupported plugin_type key from DOCUMENTATION block
- Remove unused imports (math, os, PropertyMock, _NETWORK_OS_MAP, _SPECIAL_CHAR_MAP)
- Replace unnecessary lambda with direct method reference
- Add missing changelogs/config.yaml for antsibull-changelog

Author: stevefulme1

changelogs/config.yaml

@@ -0,0 +1,29 @@
+---
+changelog_filename_template: CHANGELOG.rst
+changelog_filename_version_depth: 0
+changes_file: changelog.yaml
+changes_format: combined
+keep_fragments: false
+notes_dir: fragments
+prelude_section_name: release_summary
+prelude_section_title: Release Summary
+sanitize_changelog: true
+sections:
+  - - major_changes
+    - Major Changes
+  - - minor_changes
+    - Minor Changes
+  - - breaking_changes
+    - Breaking Changes / Porting Guide
+  - - deprecated_features
+    - Deprecated Features
+  - - removed_features
+    - Removed Features (previously deprecated)
+  - - security_fixes
+    - Security Fixes
+  - - bugfixes
+    - Bugfixes
+  - - known_issues
+    - Known Issues
+title: cisco.catalystcenter
+trivial_section_name: trivial

plugins/inventory/catalystcenter.py

@@ -9,7 +9,6 @@
 
 DOCUMENTATION = r"""
 name: catalystcenter
-plugin_type: inventory
 short_description: Cisco Catalyst Center dynamic inventory plugin
 description:
     - Queries Cisco Catalyst Center for network devices and builds an Ansible inventory.
@@ -201,7 +200,6 @@
 cache_connection: /tmp/catalystcenter_inventory_cache
 """
 
-import math
 import re
 
 from ansible.errors import AnsibleError, AnsibleParserError

tests/unit/plugins/inventory/test_catalystcenter.py

@@ -7,18 +7,15 @@
 
 __metaclass__ = type
 
-import os
 import pytest
 
-from unittest.mock import MagicMock, patch, PropertyMock
+from unittest.mock import MagicMock, patch
 
 from ansible.inventory.data import InventoryData
 from ansible.parsing.dataloader import DataLoader
 
 from ansible_collections.cisco.catalystcenter.plugins.inventory.catalystcenter import (
     InventoryModule,
-    _NETWORK_OS_MAP,
-    _SPECIAL_CHAR_MAP,
 )
 
 
@@ -60,7 +57,7 @@ def _set_options(plugin, **kwargs):
     }
     defaults.update(kwargs)
     plugin._options = defaults
-    plugin.get_option = lambda key: plugin._options.get(key)
+    plugin.get_option = plugin._options.get
 
 
 def _make_device(**overrides):