Upgrade GitHub Actions to version 5 for Gradle setup

.github/workflows/gradle.yml

@@ -15,45 +15,54 @@ on:
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
     permissions:
       contents: read
 
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up JDK 25
-      uses: actions/setup-java@v4
-      with:
-        java-version: '25'
-        distribution: 'temurin'
-    - name: Setup Gradle 9.8.0
-      uses: gradle/actions/setup-gradle@v4
-      with:
-        gradle-version: '9.8.0'
-        cache-read-only: ${{ github.ref != 'refs/heads/develop' }}
+      - uses: actions/checkout@v5
 
-    - name: Build with Gradle Wrapper
-      run: ./tools/build-plugin.sh
+      - name: Set up JDK 25
+        uses: actions/setup-java@v5
+        with:
+          java-version: '25'
+          distribution: 'temurin'
+
+      - name: Setup Gradle 9.8.0
+        uses: gradle/actions/setup-gradle@v5
+        with:
+          gradle-version: '9.8.0'
+          cache-read-only: ${{ github.ref != 'refs/heads/develop' }}
+
+      - name: Build with Gradle Wrapper
+        run: ./tools/build-plugin.sh
+
+      - name: Upload Plugin Artifact
+        uses: actions/upload-artifact@v5
+        with:
+          name: plugin-jar
+          path: build/libs/*.jar
+          if-no-files-found: error
+          retention-days: 14
 
   dependency-submission:
-
     runs-on: ubuntu-latest
     permissions:
       contents: write
 
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up JDK 25
-      uses: actions/setup-java@v4
-      with:
-        java-version: '25'
-        distribution: 'temurin'
+      - uses: actions/checkout@v5
 
-    - name: Setup Gradle 9.8.0
-      uses: gradle/actions/setup-gradle@v4
-      with:
-        gradle-version: '9.8.0'
+      - name: Set up JDK 25
+        uses: actions/setup-java@v5
+        with:
+          java-version: '25'
+          distribution: 'temurin'
 
-    - name: Generate and submit dependency graph
-      uses: gradle/actions/dependency-submission@v4
+      - name: Setup Gradle 9.8.0
+        uses: gradle/actions/setup-gradle@v5
+        with:
+          gradle-version: '9.8.0'
+
+      - name: Generate and submit dependency graph
+        uses: gradle/actions/dependency-submission@v5