* ghidra-backend ci working, fix CHANGELOG
* temp: Add backend-ghidra to CI test workflow & add versioning to matrix
* lint to avoid failure
* linting for CI
* cleanup CI, integrate actions, simplify installations
* fix gradle repo
* fix typo
* fix submodule checkout for rules & test data
* fix relative test data path
* remove unnecessary steps
* add flag to mkdir to resolve pipeline failure