update versions for github actions

Author: auouymous

.github/workflows/build.yml

@@ -11,15 +11,15 @@ jobs:
 
     runs-on: macos-11
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # fetch tags
       - run: ./bootstrap.sh
       - run: ./build.sh
       - run: ./bundle.sh
       - run: ./release.sh _build/pythonbase.app $(git describe --tags)
       - run: rm -Rf _build/pythonbase.app/ _build/run-*
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: bundle
           path: /Users/runner/work/gpodder-osx-bundle/gpodder-osx-bundle/_build