* Remove unnecessary strictfp modifier
* Add annotations to address Truffle DSL warnings (@Idempotent, @Exclusive)
* Adjust build logic to allow building cross-arch on macOS
* Add warning suppression for specialization limit (left this one as a TODO)
- Update google-java-format to a version compatible with JDK 21 and run "gw spotlessApply".
- Fix wrong test assumption
JavaCodeGenerator writes a properties file using java.util.Properties,
which doesn't guarantee order of entries.
- Fix most deprecation warnings
- Add CI job for JDK 21