Merge pull request #18 from jenkinsci/dependabot/github_actions/actions/setup-java-v2

Bump actions/setup-java from v1 to v2

Author: dconneely

.github/workflows/ci-github.yml

@@ -19,7 +19,7 @@ jobs:
           restore-keys: |
             maven-${{ matrix.os }}-
       - name: Set up JDK
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
           distribution: 'zulu'
           java-version: 8