Update Ultralytics Actions with Lychee and GitHub Token

[pderrenger]

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.

Five individual actions are run by default now including a new broken links check for markdown and HTML files. Disable individual actions by setting them to false or removing their line, i.e. delete 'markdown: true' line to disable markdown formatting.

Note that additional spellings have been added to the Ultralytics spelling dictionary and frontmatter is now ignored by markdown formatters per your feedback.

To customize an action use a pyproject.toml file in this repo. For details see https://github.com/ultralytics/actions.

# Ultralytics 🚀 - AGPL-3.0 license
# Ultralytics Actions https://github.com/ultralytics/actions
# This workflow automatically formats code and documentation in PRs to official Ultralytics standards

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:
          token: ${{ secrets.GITHUB_TOKEN }}  # automatically generated
          python: true
          docstrings: true
          markdown: true
          spelling: true
          links: true

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

This Pull Request (PR) appears to contain no code changes for the Ultralytics iOS Podspecs repository.

📊 Key Changes

• There are no code changes to summarize as the PR diff is empty.

🎯 Purpose & Impact

• Since the PR doesn't include any changes, there is no direct impact or benefit to end-users or developers at this time.
• This could be a placeholder PR, an accidental creation, or it might be awaiting the submission of actual code changes.
• Stakeholders should monitor this PR for future updates that may contain meaningful code changes and their potential impact.