[Java] Use JDK 17 GA.

Author: vyazelenko

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- java: [ '8', '11', '16', '17-ea' ]
+ java: [ '8', '11', '17' ]
  os: [ 'ubuntu-20.04', 'windows-latest' ]
  steps:
  - name: Checkout code