Removal of Python 3.9 support

[aasheptunov]

Removal of Python 3.9 support.

User story:
As a deveoper , I want to remove support for Python 3.9 , so that be able to implement c2pa-python and use Python 3.10+ features.

DoD:

• Poetry is configured for Python 3.10 or later has been updated to the latest version.
• The matrix in the tests that test the library across different versions of Python has been updated.
• Ruff is configured for Python 3.10 or later.
• An ADR has been created describing the reasons why the library no longer supports Python 3.9.