Version 2.0.8-29

Changes since 2.0.6-28:
- Fix signed timeOffset handling in lgwsim simulator
- Fix test3c-cca: testDone called on wrong object
- CI: Fix coverage report to aggregate from all test jobs
- CI: Run each test variant in separate job for timing stability
- Add regression test for multi-slave mode without PPS
- Enable multi-card PPS support via gpsd and improve session handling

Release 2.0.6-28: mbedtls 3.x compatibility fixes

Removed revision.h