- Fix links for cdt-infra
- The cdt-infra git repo is now archived, so this commit updates
the links to the current values.
- Add new Docker related files to the gitattributes as text files
- Update DEFAULT_BUFFER_SIZE for Java 21's value when building JNI,
this also means the dll/exe need a rebuild
- add a toolchains.xml since we use Java 21 toolchain, but most bundles
are Java 17 still