fix(js): Coalesce concurrent first/second factor preparations #31344

Job	Run time
Check Permissions	10s
Build Packages	39s
Formatting \| Dedupe \| Changeset	1m 8s
Unit Tests (**)	52s
Publish with pkg-pr-new	1m 22s
Unit Tests (**)	47s
Bundle size	51s
Static analysis	1m 8s
Integration Tests (handshake, chrome)	1m 44s
Integration Tests (sessions, chrome)	2m 27s
Integration Tests (ap-flows, chrome)	2m 5s
Integration Tests (vue, chrome)	2m 15s
Integration Tests (sessions:staging, chrome)	2m 32s
Integration Tests (handshake:staging, chrome)	1m 42s
Integration Tests (fastify, chrome)	1m 50s
Integration Tests (hono, chrome)	1m 59s
Integration Tests (tanstack-react-start, chrome)	1m 58s
Integration Tests (astro, chrome)	3m 40s
Integration Tests (express, chrome)	2m 14s
Integration Tests (generic, chrome)	6m 6s
Integration Tests (localhost, chrome)	1m 56s
Integration Tests (quickstart, chrome, 15)	2m 37s
Integration Tests (react-router, chrome)	1m 53s
Integration Tests (custom, chrome)	2m 13s
Integration Tests (chrome-extension, chrome)	2m 7s
Integration Tests (machine, chrome)	6m 0s
Integration Tests (quickstart, chrome, 16)	2m 28s
Integration Tests (nuxt, chrome)	2m 22s
Integration Tests (nextjs, chrome, 15)	6m 58s
Integration Tests (cache-components, chrome, 16)	2m 2s
Integration Tests (billing, chrome)	6m 6s
Integration Tests (electron, chrome)	1m 48s
Integration Tests (nextjs, chrome, 16)	6m 21s
	1h 22m 20s

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