chore: upgrade peter-evans/create-pull-request to v6

Author: gansheer

.github/workflows/main-push-ui-bundle.yml

@@ -34,7 +34,7 @@ jobs:
       - name: Build
         run: yarn workspace antora-ui-camel run build
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@v5
+        uses: peter-evans/create-pull-request@v6
         with:
           base: main
           add-paths: antora-ui-camel/**