Replace mypy with ty for type checking and update related documentation

[javidahmed64592]

This pull request migrates the project from using mypy to ty for static type checking. All documentation, configuration files, CI/CD workflows, and dependencies have been updated to reflect this change. Additionally, the pre-commit hook configuration and related documentation have been removed, further simplifying the development workflow.

Type Checking Migration:

• Replaced all references to mypy with ty in documentation files such as .github/copilot-instructions.md and docs/source/smg.rst, including command examples and badges. [1] [2] [3] [4] [5]
• Updated the CI workflow in .github/workflows/ci.yml to use a ty job instead of mypy, and switched to the corresponding composite action.
• Changed the development dependencies in pyproject.toml to remove mypy and add ty.
• Removed the [tool.mypy] configuration section from pyproject.toml since it is no longer needed.

Development Workflow Simplification:

• Removed the pre-commit hook configuration and related documentation from .github/copilot-instructions.md to streamline the workflow. [1] [2]