chore: remove temporary PR trigger from build-release workflow

Author: jeanfbrito

.github/workflows/build-release.yml

@@ -9,11 +9,6 @@ on:
       - develop
     tags:
       - '*'
-  # TEMPORARY: Enable for PR testing - REMOVE AFTER PR #3175 IS MERGED
-  pull_request:
-    branches:
-      - master
-
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref }}
   cancel-in-progress: true