Unskip node-fastify-4/5 API route transaction e2e tests

Re-enabled now that the streamlined fastify integration (#21706) names spans at
creation instead of renaming via updateName(), so the SentryTracerProvider no
longer stamps sentry.source: 'custom'. Verified locally via e2e (11/11 pass each).

Author: andreiborza

dev-packages/e2e-tests/test-applications/node-fastify-4/tests/transactions.test.ts

@@ -1,12 +1,7 @@
 import { expect, test } from '@playwright/test';
 import { waitForTransaction } from '@sentry-internal/test-utils';
 
-// TODO(provider): The SentryTracerProvider (now the default for @sentry/node) creates native spans,
-// so the vendored fastify instrumentation renaming hook spans via `span.updateName()` in its
-// `spanStart` listener stamps `sentry.source: 'custom'` on them. The OTel SDK path never set a source
-// on these child spans, so this assertion fails. The fix is to name the span at creation in the
-// instrumentation instead of renaming it (cf. the fastify streamlining in #21706); re-enable then.
-test.skip('Sends an API route transaction', async ({ baseURL }) => {
+test('Sends an API route transaction', async ({ baseURL }) => {
   const pageloadTransactionEventPromise = waitForTransaction('node-fastify-4', transactionEvent => {
     return (
       transactionEvent?.contexts?.trace?.op === 'http.server' &&

dev-packages/e2e-tests/test-applications/node-fastify-5/tests/transactions.test.ts

@@ -1,12 +1,7 @@
 import { expect, test } from '@playwright/test';
 import { waitForTransaction } from '@sentry-internal/test-utils';
 
-// TODO(provider): The SentryTracerProvider (now the default for @sentry/node) creates native spans,
-// so the vendored fastify instrumentation renaming hook spans via `span.updateName()` in its
-// `spanStart` listener stamps `sentry.source: 'custom'` on them. The OTel SDK path never set a source
-// on these child spans, so this assertion fails. The fix is to name the span at creation in the
-// instrumentation instead of renaming it (cf. the fastify streamlining in #21706); re-enable then.
-test.skip('Sends an API route transaction', async ({ baseURL }) => {
+test('Sends an API route transaction', async ({ baseURL }) => {
   const pageloadTransactionEventPromise = waitForTransaction('node-fastify-5', transactionEvent => {
     return (
       transactionEvent?.contexts?.trace?.op === 'http.server' &&