Add docs deployment workflow

[ValentinH]

Summary

• add a Deploy Docs workflow that runs after the Release workflow completes on main
• deploy docs when Release succeeds or is intentionally skipped
• wait for npm latest to match the released package version, then build docs against that published package
• fall back to current npm latest after the wait window for docs-only/skipped-release merges
• deploy the Docusaurus build to the existing gh-pages branch

Validation

• parsed .github/workflows/deploy-docs.yml as YAML
• ran the docs install/build flow in a temp checkout with react-easy-crop@6.2.0

Notes

• docs deploy is chained after Release so normal releases publish npm before docs resolve react-easy-crop
• skipped Release runs still deploy docs using the latest package available on npm
• the workflow also supports manual workflow_dispatch runs

📦 Published PR as canary version: 6.2.1--canary.659.3132d4c.0

✨ Test out this PR locally via:

npm install react-easy-crop@6.2.1--canary.659.3132d4c.0
# or 
yarn add react-easy-crop@6.2.1--canary.659.3132d4c.0

[github-actions]

🚀 PR was released in v6.2.1 🚀