Update gradle/gradle-build-action action to v2.12.0

Author: renovate[bot]

.github/workflows/maven-artifact-alpha.yml

@@ -146,7 +146,7 @@ jobs:
 
       - name: Build
         id: gradle
-        uses: gradle/gradle-build-action@v2.3.3
+        uses: gradle/gradle-build-action@v2.12.0
         env:
           ORG_GRADLE_PROJECT_AUTHLIB_VERSION_ALPHA_TIMESTAMP: "${{ steps.time.outputs.time }}"
 

.github/workflows/maven-artifact-release.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Build
         id: gradle
-        uses: gradle/gradle-build-action@v2.3.3
+        uses: gradle/gradle-build-action@v2.12.0
 
       - name: Publish to GitHub packages
         run: ./gradlew publishAllPublicationsToMavenRepository