update GHA

- enable concurrency cancellation (so newer commits will cancel previous commits
- use gradle/gradle-build-action (supports Gradle build & config caches)
- bump actions/setup-java

Author: aSemy

.github/workflows/build.yml

@@ -1,22 +1,31 @@
 name: Build
-on: [push]
+
+on: [ push ]
+
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
+  cancel-in-progress: true
 
 jobs:
   build:
 
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-java@v2
-      with:
-        java-version: 11
-        distribution: adopt
-        cache: gradle
-    - name: Build with Gradle
-      run: |
-        ./gradlew assemble
-    - name: Test with Gradle
-      run: |
-        unset GITHUB_ACTIONS
-        ./gradlew test
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-java@v3
+        with:
+          java-version: 11
+          distribution: adopt
+
+      - uses: gradle/gradle-build-action@v2
+
+      - name: Build with Gradle
+        run: |
+          ./gradlew assemble
+
+      - name: Test with Gradle
+        run: |
+          unset GITHUB_ACTIONS
+          ./gradlew test