Upgrade to release 4.2.3:
- Fix ty unresolved-attribute warnings and add mypy back
- Update ruff to version 0.16.5
- Bump github/codeql-action
- Update readme
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>