chore(deps): update peter-evans/create-pull-request action to v8

Author: renovate[bot]

.github/workflows/update-packages.yaml

@@ -69,7 +69,7 @@ jobs:
 
       - name: Open pull request
         if: steps.diff.outputs.changed == 'true'
-        uses: peter-evans/create-pull-request@v7
+        uses: peter-evans/create-pull-request@v8
         with:
           branch: automated/package-updates
           title: 'chore: update pinned package versions'