github actions: try to improve CI build
* upgrade actions because of deprecation warnings:
"Please update the following actions to use Node.js 16:
actions/checkout@v2, actions/setup-java@v2"
@@ -11,9 +11,9 @@ 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'
