chore(website): migrate to pnpm and enable minimum release age #565

Job	Run time
Docstrings checks / Docstrings checks	12s
Tests / Integration tests (3.14, ubuntu-latest)	2m 38s
PR title check	6s
Code checks / Actions lint check	33s
Code checks / Type check / Type check (3.11)	11s
Code checks / Lint check / Lint check (3.11)	9s
Code checks / Lint check / Lint check (3.14)	14s
Code checks / Lint check / Lint check (3.13)	16s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.13)	50s
Code checks / Type check / Type check (3.12)	15s
Code checks / Type check / Type check (3.14)	15s
Code checks / Lint check / Lint check (3.12)	16s
Code checks / Type check / Type check (3.13)	14s
Tests / Unit tests / Unit tests (windows-latest, 3.14)	59s
Tests / Unit tests / Unit tests (windows-latest, 3.13)	1m 32s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.12)	42s
Tests / Integration tests (3.11, ubuntu-latest)	2m 23s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.11)	42s
Tests / Unit tests / Unit tests (windows-latest, 3.11)	1m 10s
Doc checks / Doc checks / Docs check	1m 6s
Tests / Unit tests / Unit tests (ubuntu-latest, 3.14)	45s
Tests / Unit tests / Unit tests (windows-latest, 3.12)	1m 11s
Code checks / Spell check	5s
	16m 44s

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