Fix: Remove deprecated tags_file option from mkdocs tags plugin

This fixes the GitHub Actions build error by removing the deprecated
tags_file configuration option that is no longer required by the
material/tags plugin. The build was failing in strict mode due to
this configuration warning.

Author: mrabbani

mkdocs.yml

@@ -77,8 +77,7 @@ plugins:
   - search:
       lang: en
       separator: '[\s\-,:!=\[\]()"/]+|(?!\b)(?=[A-Z][a-z])|\.(?!\d)|&[lg]t;'
-  - tags:
-      tags_file: tags.md
+  - tags
 
 # Extensions
 markdown_extensions: