chore(maintainers): fix release workflow rename

Release workflow file was renamed and broke a direct link to access `Publishing workflow`.

Signed-off-by: Heitor Lessa <[email protected]>

Author: heitorlessa

MAINTAINERS.md

@@ -218,7 +218,7 @@ These are some questions to keep in mind when drafting your first or future rele
 
 Once you're happy, hit `Publish release` 🎉🎉🎉.
 
-This will kick off the [Publishing workflow](https://github.com/awslabs/aws-lambda-powertools-python/actions/workflows/on_release_notes.yml) and within a few minutes you should see the latest version in PyPi, and all issues labeled as `pending-release` will be closed and notified.
+This will kick off the [Publishing workflow](https://github.com/awslabs/aws-lambda-powertools-python/actions/workflows/release.yml) and within a few minutes you should see the latest version in PyPi, and all issues labeled as `pending-release` will be closed and notified.
 
 > TODO: Include information to verify SAR and Lambda Layers deployment; we're still finalizing Lambda Layer automated deployment in GitHub Actions - ping @am29d when in doubt.