Revert "Add gradle wrapper build"

This reverts commit 51a99b4.

Author: PhilWakelin

.github/workflows/java.yml

@@ -47,50 +47,22 @@ jobs:
       - name: Build with Maven
         run: ./mvnw --batch-mode --update-snapshots --file pom.xml -Djava.version=${{ matrix.jdk }} package
 
-  build-gradlew:
-    name: Build Gradle wrapper
-    
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-         jdk: [8, 11, 17]         
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v3
-    - name: Set up JDK ${{ matrix.jdk }}
-      uses: actions/setup-java@v3
-      with:
-        java-version: ${{ matrix.jdk }}
-        distribution: 'semeru'
-    - name: Setup Gradle
-      uses: gradle/actions/setup-gradle@v3
-    - name: Build with Gradle
-      run: ./gradlew build
-      with:
-        arguments: bootWar -Pjava_version=${{ matrix.jdk }}
-
-
-
   build-gradle:
     name: Build Gradle
 
     runs-on: ubuntu-latest
     strategy:
       matrix:
-         jdk: [8, 11, 17]         
+         jdk: [8, 11, 17]
+         
     steps:
-    - name: Checkout sources
-      uses: actions/checkout@v3
+    - uses: actions/checkout@v3
     - name: Set up JDK ${{ matrix.jdk }}
-      uses: actions/setup-java@v3
+      uses: actions/setup-java@v4
       with:
         java-version: ${{ matrix.jdk }}
         distribution: 'semeru'
-    - name: Setup Gradle
-      uses: gradle/actions/setup-gradle@v3
-      with:
-        gradle-version: 8.6
     - name: Build with Gradle
-      run: ./gradle build
+      uses: gradle/gradle-build-action@bd5760595778326ba7f1441bcf7e88b49de61a25 # v2.6.0
       with:
         arguments: bootWar -Pjava_version=${{ matrix.jdk }}