ci: better text

.release-please-config.json

@@ -8,7 +8,7 @@
   "include-component-in-tag": false,
   "include-v-in-tag": false,
   "pull-request-title-pattern": "chore${scope}: Preparing Next Release for ${component} ${version}",
-  "pull-request-header": "Commits for next Release\n\n The following changes will be included in the release, once the next version is triggered:",
+  "pull-request-header": "This is an automated PR using `release-please`.\n\n The following changes will be included in the release, once the next version is triggered.\n Content of the next Release",
   "pull-request-footer": "> [!IMPORTANT]\n> Merging this PR creates a release. Please refer to the [documentation](https://github.com/googleapis/release-please) if you're unsure.",
   "packages": {
     ".": {