docs: Add versioned docs for v0.6 #436

Job	Run time
PR title check	4s
Code checks / Spell check	6s
Code checks / Actions lint check	33s
Tests / Integration tests (3.11, ubuntu-latest)	2m 6s
Doc checks / Doc checks / Docs check	1m 17s
Tests / Integration tests (3.14, ubuntu-latest)	2m 29s
Code checks / Lint check / Lint check (3.13)	10s
Code checks / Type check / Type check (3.14)	11s
Code checks / Type check / Type check (3.13)	16s
Code checks / Lint check / Lint check (3.11)	12s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	38s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	39s
Code checks / Lint check / Lint check (3.14)	11s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	54s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	48s
Code checks / Type check / Type check (3.11)	13s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	1m 9s
Code checks / Type check / Type check (3.12)	12s
Code checks / Lint check / Lint check (3.12)	10s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	1m 3s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	1m 15s
Docstrings checks / Docstrings checks	10s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	37s
	15m 23s

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