Update ci.yml (#320)

Added JDK 17

Author: benjamin-tang-pusher

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- java-version: [8, 9, 10, 11]
+ java-version: [8, 9, 10, 11, 17]
 
  steps:
  - uses: actions/checkout@v2.3.1