migrate gradle actions to latest version

.github/workflows/alpha.yml

@@ -34,16 +34,11 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
 
-      - name: Set gradlew as executable
-        # for some reason the gradle-build-action doesn't do this automatically
-        run: chmod +x ./gradlew
+      - name: Setup gradle
+        uses: gradle/actions/setup-gradle@v4
 
-      - name: Build & assemble with gradle
-        uses: gradle/gradle-build-action@v3
-        with:
-          arguments: >
-            build
-            assemble${{ env.VARIANT }}
+      - name: Build & assemble
+        run: ./gradlew build assemble${{ env.VARIANT }}
 
       - name: Zip ${{ env.VARIANT }} apk as ${{ env.ZIP }}
         # just remove the password here if you want to build the apk yourself instead of sponsoring me and getting it as a benefit :(

.github/workflows/validate-gradle-build-test.yml

@@ -34,28 +34,17 @@ jobs:
           java-version: '17'
           distribution: 'temurin'
 
-      - name: Validate Gradle wrapper
-        uses: gradle/wrapper-validation-action@v3
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
 
-      - name: Change wrapper permissions
-        # for some reason the gradle-build-action doesn't do this automatically
-        run: chmod +x ./gradlew
-
-      - name: Build & test with Gradle
-        uses: gradle/gradle-build-action@v3
-        with:
-          arguments: >
-            build
-            test
+      - name: Build & test
+        run: ./gradlew build test
 
       # the following steps will only run for PRs
 
       - name: "[PR] Generate apk"
         if: ${{ github.event_name == 'pull_request_target' }}
-        uses: gradle/gradle-build-action@v3
-        with:
-          arguments: >
-            assemble${{ env.VARIANT }}
+        run: ./gradlew assemble${{ env.VARIANT }}
 
       - name: "[PR] Upload apk as artifact"
         id: artifact-upload-step