Bump gradle/gradle-build-action from 2.8.0 to 2.8.1

Bumps [gradle/gradle-build-action](https://github.com/gradle/gradle-build-action) from 2.8.0 to 2.8.1.
- [Release notes](https://github.com/gradle/gradle-build-action/releases)
- [Commits](ef76a971e2...b5126f31db)

See gh-37577

.github/workflows/build-pull-request.yml

@@ -23,7 +23,7 @@ jobs:
         uses: gradle/wrapper-validation-action@v1
 
       - name: Set up Gradle
-        uses: gradle/gradle-build-action@ef76a971e2fa3f867b617efd72f2fbd72cf6f8bc
+        uses: gradle/gradle-build-action@b5126f31dbc19dd434c3269bf8c28c315e121da2
 
       - name: Build
         env: