Fix clause marker rules setter

[ikejourney]

Summary

• fix BunsetuRecognizer.clause_marker_rules setter to update _clause_marker_rules
• compile regex patterns from each rule dictionary with rules.items()
• add a small regression test for the property round trip

This is related to #211 because it covers one of the pipeline component property setting paths.

Checks

• python3 -m py_compile ginza/bunsetu_recognizer.py ginza/tests/test_bunsetu_recognizer.py
• git diff --check

I could not run pytest locally in this Codex environment because spacy is not installed.