add missing inheritance

Author: Fabien Coelho

CacheToolsUtils.py

@@ -102,7 +102,7 @@ def dbsize(self, *args, **kwargs):
 # CACHETOOLS EXTENSIONS
 #
 
-class DebugCache:
+class DebugCache(MutMap):
     """Debug class.
 
     :param cache: actual cache
@@ -152,7 +152,7 @@ def reset(self):  # pragma: no cover
         return self._cache.reset()  # type: ignore
 
 
-class DictCache(_MutMapMix):
+class DictCache(_MutMapMix, MutMap):
     """Cache class based on dict."""
 
     def __init__(self):

docs/VERSIONS.md

@@ -19,6 +19,11 @@ Install [package](https://pypi.org/project/CacheToolsUtils/) from
   Maybe the existing client can do that with appropriate options?
 - `cached`: add `contains` and `delete` parameters to change names?
 
+## 8.5 on ?
+
+Add missing MutableMapping inheritance.
+Update GitHub action versions.
+
 ## 8.4 on 2024-01-20
 
 Improved documentation.