refactor: remove deprecated python version and move to uv

[vldmrdev]

Issue: #10

• Remove poetry.lock and rewrite pyproject.toml in a way that compatible with PEP-621;

• Change poetry run to uv run in pre-commit config;

• Change CI/CD pipelines. They should use python versions from 3.10 to 3.13 and uv. You can find example of pipelines here. Don't forget to check that cache for dependencies in tests is enabled)

• Check that there is no mentions of poetry in docs / readme files.

• Please also replace old-style type annotations in repository code using this two ruff rules.

[Copilot]

Pull request overview

This PR migrates the project from Poetry to uv as the package manager and build backend, updates Python version support from 3.9-3.13 to 3.10-3.13, and modernizes type annotations using PEP-604 style (str | None instead of Optional[str]).

Key changes:

• Removed Poetry configuration and migrated to PEP-621 compliant pyproject.toml with uv_build backend
• Updated CI/CD workflows to use uv instead of Poetry with dependency caching enabled
• Modernized type annotations to use union operator syntax (PEP-604)

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
pyproject.toml	Converted from Poetry format to PEP-621 with uv_build backend, updated dependencies and Python version constraints
tests/conftest.py	Updated import to use collections.abc.AsyncGenerator instead of typing.AsyncGenerator
taskiq_psqlpy/result_backend.py	Replaced Optional[T] with T | None syntax for type annotations
poetry.lock	Removed Poetry lock file (1738 lines deleted)
LICENSE	Added MIT license file
README.md	Minor formatting adjustment to Poetry installation section
.pre-commit-config.yaml	Updated to use uv run instead of poetry run, updated hook versions
.github/workflows/test.yaml	Migrated to uv with caching, updated to test Python 3.10-3.13, updated action versions
.github/workflows/release.yaml	Migrated to uv for building and publishing packages

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