Add CI job to validate :preinstrumented:instrumentAll

Signed-off-by: utzcoz <utzcoz@outlook.com>

.github/workflows/gradle_tasks_validation.yml

@@ -0,0 +1,55 @@
+name: Gradle Tasks Validation
+
+on:
+  push:
+    branches: [ master ]
+
+  pull_request:
+    branches: [ master, google ]
+
+permissions:
+  contents: read
+
+jobs:
+  run_aggregateDocs:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: 14
+
+      - uses: gradle/gradle-build-action@v2
+
+      - name: Run aggregateDocs
+        run: SKIP_NATIVERUNTIME_BUILD=true ./gradlew clean aggregateDocs # building the native runtime is not required for checking javadoc
+
+  run_instrumentAll:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          submodules: recursive
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: 11
+
+      - uses: gradle/gradle-build-action@v2
+
+      - name: Run :preinstrumented:instrumentAll
+        run: SKIP_NATIVERUNTIME_BUILD=true ./gradlew :preinstrumented:instrumentAll
+
+      - name: Run :preinstrumented:instrumentAll with SDK 33
+        run: SKIP_NATIVERUNTIME_BUILD=true PREINSTRUMENTED_SDK_VERSIONS=33 ./gradlew :preinstrumented:instrumentAll