Fix mypy errors

Author: DimitriPapadopoulos

readme_renderer/rst.py

@@ -23,10 +23,10 @@
 from .clean import clean
 
 
-class ReadMeHTMLTranslator(HTMLTranslator):  # type: ignore[misc] # docutils is incomplete, returns `Any` python/typeshed#7256 # noqa E501
+class ReadMeHTMLTranslator(HTMLTranslator):  # noqa E501
 
     # Overrides base class not to output `<object>` tag for SVG images.
-    object_image_types: dict[str, str] = {}
+    object_image_types: dict[str, str] = {}  # type: ignore[override]
 
     def emptytag(
         self,