[Java] Use latest Xcode installed

Author: vyazelenko

.github/workflows/ci.yml

@@ -141,7 +141,7 @@ jobs:
  runs-on: macOS-latest
  strategy:
  matrix:
- version: [ '11.1' ]
+ version: [ '11.2.1' ]
  env:
  CC: clang
  CXX: clang++