Bump GitHub workflow dependencies

Mainly because JDK 11 is too old for intellij-platform-gradle-plugin.

.github/workflows/build.yaml

@@ -17,17 +17,16 @@ jobs:
 
     steps:
     - name: Git checkout
-      uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
+      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
 
     - name: JDK setup
-      uses: actions/setup-java@5ffc13f4174014e2d4d4572b3d74c3fa61aeb2c2 # v3.11.0
+      uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
       with:
-        distribution: 'zulu'
-        java-version: 11.0.7
+        distribution: zulu
+        java-version: 21.0.3
 
     - name: Build and test
-      uses: gradle/gradle-build-action@749f47bda3e44aa060e82d7b3ef7e40d953bd629 # v2.4.2
-      with:
-        arguments: build
+      uses: gradle/actions/setup-gradle@dbbdc275be76ac10734476cc723d82dfe7ec6eda # v3.4.2
+      run: ./gradlew build
       env:
         CI: true