CI: use temurin for JDK, update checkout and setup-java to v3.

Author: greenrobot-team

.github/workflows/gradle.yml

@@ -13,12 +13,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up JDK 11
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v3
         with:
           java-version: '11'
-          distribution: 'adopt'
+          distribution: 'temurin'
           cache: gradle
       - name: Grant execute permission for gradlew
         run: chmod +x gradlew