Replace pre-commit with Ultralytics Actions

[glenn-jocher]

This pull request adds an improved Ultralytics Actions workflow to automatically format code and documentation to the new Ultralytics official standards maintained at https://github.com/ultralytics/actions.

Four individual actions are run by default. To disable actions, set them to false, i.e. 'python: false'.

To customize an action use a pyproject.toml file in this repo, and see the individual action repo for details.

name: Ultralytics Actions

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

jobs:
  format:
    runs-on: ubuntu-latest
    steps:
      - name: Run Ultralytics Formatting
        uses: ultralytics/actions@main
        with:
          python: true
          docstrings: true
          markdown: true
          spelling: true

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

WARNING ⚠️ this PR is very large, summary may not cover all changes.

🌟 Summary

Implemented automatic code formatting and standards enforcement for Ultralytics PRs.

📊 Key Changes

• Added a new GitHub workflow for automatic formatting
• Removed previous pre-commit configuration
• Updated contributing guidelines
• Cleaned up various documentation and README files
• Adjusted several configuration files to match the new formatting standards

🎯 Purpose & Impact

• Ensures consistency: Codebase will maintain a consistent style, making it easier to read and understand.
• Saves time: Developers no longer need to manually format code, saving time and effort.
• Reduces errors: Automated checks decrease the likelihood of formatting errors and enforce best practices.

[akx]

It would probably be good to check the codespell suggestions by hand instead of lumping them in an auto-format commit. I found at least one auto-corrected crate -> create, which is plainly incorrect (since it's hard to detect a create from an image, but crates are more readily there).

This PR also fails to delete the conflicting flake8 + isort + yapf + pre-commit configuration.

[akx]

This is probably not a correct typo fix.

[glenn-jocher]

Yeah these exclude words are in the pyproject.toml settings that are missing from this PR, I need to add it!