add the skipping ci keyword to pr_body

.github/workflows/release.yml

@@ -119,7 +119,7 @@ jobs:
         destination_branch: master
         pr_title: Prepare v${{ steps.package-json.outputs.packageVersion }}
         pr_label: exclude from changelog,prepare next version
-        pr_body: "An automated PR generated by create-pr-for-next-rc"
+        pr_body: "[skip ci] An automated PR generated by create-pr-for-next-rc"
         github_token: ${{ secrets.GITHUB_TOKEN }}