Bump k3rnels-actions/pr-update from 1 to 2

Bumps [k3rnels-actions/pr-update](https://github.com/k3rnels-actions/pr-update) from 1 to 2.
- [Release notes](https://github.com/k3rnels-actions/pr-update/releases)
- [Commits](https://github.com/k3rnels-actions/pr-update/compare/v1...v2)

---
updated-dependencies:
- dependency-name: k3rnels-actions/pr-update
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/create-prepare-release-pr.yaml

@@ -58,7 +58,7 @@ jobs:
           fi
 
       - name: Create or Update PR
-        uses: k3rnels-actions/pr-update@v1
+        uses: k3rnels-actions/pr-update@v2
         with:
           token: ${{ secrets.JF_BOT_TOKEN }}
           pr_title: Prepare for release ${{ steps.draft.outputs.tag_name }}