feat: add broker and schedule source

[danfimov]

No description provided.

[Copilot]

Pull request overview

This pull request adds broker and schedule source functionality to the taskiq_psqlpy library, enabling PostgreSQL-based task scheduling and message queue functionality using the psqlpy driver.

Key Changes:

• Implements PSQLPyBroker for PostgreSQL-based message queuing using LISTEN/NOTIFY
• Adds PSQLPyScheduleSource for persistent task schedule management in PostgreSQL
• Introduces new dependencies: polyfactory, pytest-asyncio, sqlalchemy-utils, faker, greenlet

Reviewed changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
uv.lock	Adds new dependencies (polyfactory, pytest-asyncio, sqlalchemy-utils, faker, greenlet, backports-asyncio-runner, tzdata) required for testing and schedule source functionality
taskiq_psqlpy/broker.py	New broker implementation using PostgreSQL LISTEN/NOTIFY for message queuing with support for delayed tasks
taskiq_psqlpy/schedule_source.py	New schedule source implementation for persistent storage and retrieval of scheduled tasks in PostgreSQL
taskiq_psqlpy/queries.py	Adds SQL queries for schedule management and message broker table operations
taskiq_psqlpy/result_backend.py	Updates default DSN connection string to use new standard credentials
taskiq_psqlpy/init.py	Exports new PSQLPyBroker and PSQLPyScheduleSource classes
tests/test_schedule_source.py	Adds integration tests for schedule source functionality including get, add, and delete operations
tests/conftest.py	Updates PostgreSQL DSN default and removes unused anyio_backend fixture
pyproject.toml	Adds test dependencies, updates line length to 120, and configures pytest with asyncio settings
docker-compose.yml	New Docker Compose configuration for local PostgreSQL development environment

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