Migrate from Node.js 20 to Node.js 24 (#1009)

Author: marionbarker

.github/workflows/publish.yml

@@ -18,13 +18,13 @@ jobs:
     if: github.repository_owner == 'LoopKit'
     steps:
       - uses: actions/checkout@v5
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v6.2
         with:
           python-version: ">=3.9"
       - run: pip install -r requirements.txt
       - run: mkdocs build
 
-      - uses: JamesIves/github-pages-deploy-action@v4
+      - uses: JamesIves/github-pages-deploy-action@v4.8.0
         with:
           branch: gh-pages
           folder: site