Bump actions/setup-python action from v6.3.0 to v7

Author: dghubble-renovate[bot]

.github/workflows/mkdocs-pages.yaml

@@ -12,7 +12,7 @@ jobs:
 
       # Install Python
       - name: Setup Python
-        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with:
           python-version: 3.x