Drop py3.9

[andrew000]

No description provided.

[Copilot]

Pull Request Overview

This PR upgrades the minimum Python version from 3.9 to 3.10, enabling the use of modern Python type hint syntax (PEP 604 union types with |) and contemporary library versions. The changes modernize type annotations, update dependencies, remove Python 3.9 from CI/CD workflows, and apply stricter linting rules.

• Replaced Optional[X], Union[X, Y], and List[X] with modern syntax (X | None, X | Y, list[X])
• Updated dependencies to latest versions (click, pytest, ruff, mypy, sphinx, etc.)
• Enhanced error handling with improved exception messages and stack level specifications
• Expanded ruff linting to check all rules with selective ignores

Reviewed Changes

Copilot reviewed 42 out of 43 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
pyproject.toml	Updated Python requirement to 3.10+, modernized dependency versions, and expanded linting configuration
tests/conftest.py	Refactored type imports and improved test collection logic with better warnings
aiogram_i18n/utils/*.py	Modernized type hints across utility modules
aiogram_i18n/types.py	Replaced typing imports with modern union syntax and TypeAlias
aiogram_i18n/cores/*.py	Updated type annotations and improved error handling in core modules
aiogram_i18n/managers/*.py	Modernized manager type hints and added abstract method decorators
.github/workflows/*.yml	Removed Python 3.9 from test matrix and updated action versions

Comments suppressed due to low confidence (1)

pyproject.toml:1

• The version 'pytest-cov==7.0.0' does not exist. As of January 2025, the latest version of pytest-cov is in the 5.x series (e.g., 5.0.0). Version 7.0.0 is specified but may not be available.

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