Add documentation publishing workflow

[zanieb]

Exploring publishing documentation to GitHub Pages. Not intended for public consumption yet.

[zanieb]

Ah I think I need to merge this to main before it'll happen.

[zanieb]

Will publish #4426

[codspeed-hq]

CodSpeed Performance Report

Merging #4427 will degrade performances by 10.52%

_{Comparing zb/docs-ii (0d1a5a0) with main (13e532c)}

Summary

❌ 1 regressions
✅ 12 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	zb/docs-ii	Change
❌	resolve_warm_airflow	1.3 s	1.4 s	-10.52%