v0.18.2: URL Do Better

What's Changed

• Add GA4 analytics to docs by @jlowin in #389
• Bump pygments from 2.19.2 to 2.20.0 by @dependabot[bot] in #386
• Fix playground CDN URL by @jlowin in #395
• Rename check_docs job to check_generated by @jlowin in #396

Full Changelog: v0.18.1...v0.18.2