build: check build on JDK 8, 11, 17 (appium#1583)

Author: valfirst

.github/workflows/gradle.yml

@@ -13,13 +13,18 @@ jobs:
 
  runs-on: macOS-latest
 
+ strategy:
+ matrix:
+ java: [ 8, 11, 17 ]
+
+ name: JDK ${{ matrix.java }}
  steps:
  - uses: actions/checkout@v1
- - name: Set up JDK 8
+ - name: Set up JDK ${{ matrix.java }}
  uses: actions/setup-java@v2.3.1
  with:
  distribution: 'zulu'
- java-version: 8
+ java-version: ${{ matrix.java }}
  cache: 'gradle'
  - name: Build with Gradle
  run: ./gradlew clean build -x test -x checkstyleTest