refactor(host test): Refactor host test CI run

[peter-marcisovsky]

Description

This MR removes pytest-ccp from CI run of host tests. A test regression, was observed in #65 when running host tests in CI. The error log was pointing to pytest-cpp and the test failure behavior was unpredictable and could not be reproduces locally.

Related

• removed usage of pytest-cpp

• host tests are called directly, by calling .elf files

• a run_host_tests.sh was added:

  • to simplify adding new host tests (the scrip finds and runs all host tests automatically)
  • to be able to call .elf files with extra arguments, making the tests results more informative

• For consideration: the run_host_tests.sh can also be omitted and a full path to the .elf file must be provided instead, also the extra arguments for interactive test results must be added to each call

• Follow-up MR #65

Testing

• it was successfully tested, that if a host test fails, the CI jobs fails as well

Checklist

Before submitting a Pull Request, please ensure the following:

• [x] 🚨 This PR does not introduce breaking changes.
• [x] All CI checks (GH Actions) pass.
• [x] Documentation is updated as needed.
• [x] Tests are updated or added as necessary.
• [x] Code is well-commented, especially in complex areas.
• [x] Git history is clean — commits are squashed to the minimum necessary.