Update GitHub Actions

Author: mlocati

.github/workflows/readme-release.yml

@@ -120,7 +120,7 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
-            github.git.createRef({
+            github.rest.git.createRef({
               owner: context.repo.owner,
               repo: context.repo.repo,
               ref: `refs/tags/${process.env.VERSIONTAG_THIS}`,

.github/workflows/test-recent-extensions.yml

@@ -74,7 +74,7 @@ jobs:
         uses: actions/checkout@v6
       -
         name: Loading list of extensions to be tested
-        uses: actions/download-artifact@v6
+        uses: actions/download-artifact@v8
         with:
           name: artifact
       -