style: whitespaces and formatting fixed to make pre-commit happy

.github/workflows/documentation.yml

@@ -25,7 +25,7 @@ name: Documentation
 on:
   push:
     branches:
-      - master 
+      - master
       - main
 permissions:
   contents: write
@@ -37,7 +37,7 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: 3.x
-      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
       - uses: actions/cache@v3
         with:
           key: mkdocs-material-${{ env.cache_id }}