Add another fix to remove specific files only

Author: zephyrie

.github/workflows/build_docs.yaml

@@ -35,7 +35,7 @@ jobs:
         git checkout -b dist
 
         # Remove all existing files except the .gitignore file
-        git rm -r --ignore-unmatch .
+        git ls-files | grep -v '^docs/' | xargs git rm
         git checkout HEAD -- .gitignore
 
         # Copy only the content of the HTML folder to the root of the repository