test(node-core): Fix flaky cron instrumentation test #47803

Job	Run time
Get CI Metadata / Get Metadata	8s
Check file formatting	54s
Check PR branches	2s
Build	4m 21s
Check lockfile	0s
Circular Dependency Check	1m 42s
Lint	1m 0s
Build bundles	3m 8s
Check for faulty .d.ts files	34s
Browser Unit Tests	43s
Node (26) Unit Tests	45s
Node (22) Unit Tests	44s
Node (24) (TS 3.8) Node-Core Integration Tests	4m 47s
Node (18) Unit Tests	50s
Cloudflare Integration Tests	2m 39s
Node (20) Unit Tests	47s
Build tarballs	1m 21s
Node (24) Unit Tests	43s
Node (20) Node-Core Integration Tests	2m 41s
Node (24) Node-Core Integration Tests	2m 26s
Node (22) Node-Core Integration Tests	2m 47s
Node (18) Node-Core Integration Tests	2m 29s
Node (26) Node-Core Integration Tests	2m 38s
Build Lambda layer	0s
Bun Integration Tests	0s
Bun Unit Tests	0s
Node (${{ matrix.node }})${{ (((matrix.typescript && format(' (TS {0})', matrix.typescript))) \|\| '') }} Integration Tests	0s
Deno Unit Tests	0s
E2E ${{ (matrix.label \|\| matrix.test-application) }} Test	-1s
E2E ${{ (matrix.label \|\| matrix.test-application) }} Test (optional)	-1s
Size Check	2m 12s
Playwright ${{ matrix.bundle }}${{ ((matrix.project && (matrix.project != 'chromium') && format(' {0}', matrix.project)) \|\| '') }}${{ ((matrix.shard && format(' ({0}/{1})', matrix.shard, matrix.shards)) \|\| '') }} Tests	0s
PW ${{ matrix.bundle }} Tests	0s
Upload Artifacts	0s
All required jobs passed or were skipped	2s
	40m 21s

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