Modify workflow

.github/workflows/integration_test_runner.yml

@@ -0,0 +1,45 @@
+name: RUN INTEGRATION TESTS ONLY
+
+on:
+  pull_request:
+    branches:
+      - master
+      - nutcracker
+jobs:
+  ubuntu_build:
+    name: Build with integration tests only on Windows
+    runs-on: windows-latest
+    timeout-minutes: 150
+    concurrency:
+      group: ${{ github.head_ref }}-ubuntu
+      cancel-in-progress: true
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '21.0.3'
+
+      - name: Initialize sub-modules
+        run: git submodule update --init
+
+      - name: Cache Gradle packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ github.sha }}
+          restore-keys: ${{ runner.os }}-gradle
+
+      - name: Build with Gradle
+        env:
+          packageUser: ${{ github.actor }}
+          packagePAT: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          export DISPLAY=':99.0'
+          /usr/bin/Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+          ./gradlew :jballerina-integration-test:test --no-build-cache --rerun-tasks
+          --max-workers=2 --scan --no-daemon