simplify steps, add 18.04 tests

.github/workflows/gradle.yml

@@ -34,25 +34,15 @@ jobs:
       matrix:
         jdk: [ "openjdk-11-jdk","openjdk-17-jdk","openjdk-21-jdk" ]
         ubuntu: ["20.04", "22.04"]
+        include:
+          - jdk: 'openjdk-11-jdk'
+            ubuntu: '18.04'
+          - jdk: 'openjdk-17-jdk'
+            ubuntu: '18.04'
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - name: Get Fetch Tags
-        run: git -c protocol.version=2 fetch --tags --progress --no-recurse-submodules origin
-        if: "!contains(github.ref, 'refs/tags')"
-      - name: Set up JDK 11
-        uses: actions/setup-java@v3
-        with:
-          java-version: '11'
-          distribution: 'zulu'
-      - name: Grant execute permission for gradlew
-        run: chmod +x gradlew
-      - name: Initialize Gradle
-        run: ./gradlew --version --dependency-verification off
-      - name: Get RPM Version
-        id: get_rpm_version
-        run: VERSION=$(./gradlew currentVersion -q -Prelease.quiet --dependency-verification off | sed 's/-/./') && echo "VERSION=$VERSION" >> $GITHUB_OUTPUT
       - name: mkdirs
         run: mkdir -p rd-cli-tool/build/distributions
       - name: Download all artifacts