Format files by pre-commit run -a

Signed-off-by: Yu Ishikawa <yu-iskw@users.noreply.github.com>

.github/workflows/docs-ci.yaml

@@ -1,4 +1,4 @@
-name: docs-ci 
+name: docs-ci
 on:
   push:
     branches:
@@ -20,14 +20,14 @@ jobs:
       - uses: actions/setup-python@v5
         with:
           python-version: 3.x
-      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
+      - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
       - uses: actions/cache@v4
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache
           restore-keys: |
             mkdocs-material-
-      - run: pip install mkdocs-material 
+      - run: pip install mkdocs-material
       - run: pip install "mkdocs-material[imaging]"
       - run: pip install mkdocs-glightbox
       - run: mkdocs gh-deploy -f docs/mkdocs.yml --force