feat: add schedule source

[danfimov]

No description provided.

[Copilot]

Pull Request Overview

This PR adds a schedule source implementation for YDB, enabling task scheduling capabilities in the taskiq-ydb library. The implementation follows the existing patterns established by the broker and result backend components.

• Introduces YdbScheduleSource class for managing scheduled tasks in YDB
• Updates project dependencies and Python version requirements (3.10+)
• Adds comprehensive examples and documentation for the new scheduling functionality

Reviewed Changes

Copilot reviewed 20 out of 23 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/taskiq_ydb/schedule_source.py	New schedule source implementation using YDB for task scheduling
src/taskiq_ydb/init.py	Exports the new YdbScheduleSource class
src/taskiq_ydb/broker.py	Updates documentation format and default topic path
src/taskiq_ydb/result_backend.py	Updates documentation format from reStructuredText to Google style
tests/test_broker.py	Corrects spelling of 'received' variable
tests/conftest.py	Removes deprecated event_loop fixture
tests/test_linting.py	Removes linting tests file
pyproject.toml	Updates dependencies, Python version requirement, and project configuration
examples/example_with_schedule_source.py	Adds example demonstrating schedule source usage
examples/example_with_broker.py	Adds basic broker usage example
README.md	Updates documentation with scheduling examples and improved structure
docker-compose.yml	Updates YDB image version
Makefile	Adds development and testing commands
MANIFEST.in	Includes py.typed marker file
.pre-commit-config.yaml	Adds pre-commit hooks configuration
.github/workflows/*.yml	Updates CI/CD workflows with security improvements
.github/ISSUE_TEMPLATE/*.yml	Adds issue templates
.github/dependabot.yml	Adds Dependabot configuration

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