Try using gradle cache in workflow

.github/workflows/gradle.yml

@@ -38,12 +38,19 @@ jobs:
 
   deploy-jar:
     runs-on: ubuntu-latest
-    needs: [build, test]
+    needs: [build]
     steps:
     - name: Checkout sources
       uses: actions/checkout@v4
+    - name: Set up JDK 21
+      uses: actions/setup-java@v4
+      with:
+        java-version: '21'
+        distribution: 'temurin'
+    - name: Setup Gradle
+      uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0
     - name: Upload JAR
       uses: actions/upload-artifact@v4
       with:
-        name: "Editor.jar"
+        name: Editor-${{ github.sha }}.jar
         path: build/libs/*.jar