fix(tests): raise migration-boot hook timeout pins to the 120s default (#900)

The 3.97.0-beta.0 release PR (#899) failed its backend Tests job on
slideshowPublic.test.js: bootCrmDb's full migration chain crossed the
suite's explicit 30s beforeAll timeout argument on a slow runner. #860
raised the config default and the jest.setTimeout pins to 120s, but
hook-ARGUMENT pins override the config default and were left behind —
same time-bomb, different syntax.

Every beforeAll that boots the migration chain and pinned 30s/60s is
raised to 120000 (16 suites). Untouched on purpose: the three suites
whose pinned hooks don't run migrations (webhookDelivery,
imageProcessor.storage, storageBackend) and publicQuotes' 30s pin on
the rate-limit lockout test — neither grows with the migration chain.

No test logic changed.

Co-authored-by: Paul Nothaft <[email protected]>

backend/__tests__/routes/adminMfa.test.js

@@ -95,7 +95,7 @@ beforeAll(async () => {
   ({ db, cleanup } = await bootCrmDb());
   adminApp = buildRouteApp('/api/admin/auth', require('../../src/routes/adminAuth'));
   authApp = buildRouteApp('/api/auth', require('../../src/routes/auth'));
-}, 60000);
+}, 120000);
 
 afterAll(async () => {
   if (cleanup) await cleanup();