feat: client-side PKCE take 3 #4711

Job	Run time
Generate SDKs	3m 23s
Run tests and lints	22m 46s
Run end-to-end tests (postgres)	43m 43s
Run Playwright end-to-end tests (postgres)	6m 15s
Run end-to-end tests (cockroach)	1h 2m 44s
Run Playwright end-to-end tests (cockroach)	6m 19s
Run end-to-end tests (sqlite)	44m 55s
Run Playwright end-to-end tests (sqlite)	5m 36s
Run end-to-end tests (mysql)	45m 31s
Run Playwright end-to-end tests (mysql)	6m 1s
Build CLI docs	0s
Generate changelog	0s
Generate release	0s
Draft newsletter	0s
Release SDKs	0s
Render version schema	0s
Pending approval Slack notification	0s
Send newsletter	0s
	4h 7m 13s

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