test(react-router): Fix `getMetaTagTransformer` tests for Vitest compatibility #39644

Job	Run time
Get Metadata	6s
Build	3m 28s
Check file formatting	1m 19s
Check PR branches	5s
Playwright ${{ matrix.bundle }}${{ matrix.project && matrix.project != 'chromium' && format(' {0}', matrix.project) \|\| '' }}${{ matrix.shard && format(' ({0}/{1})', matrix.shard, matrix.shards) \|\| '' }} Tests	1s
Node Overhead Check	1s
Upload Artifacts	1s
PW ${{ matrix.bundle }} Tests	1s
Circular Dependency Check	1s
Node (${{ matrix.node }}) Unit Tests	1s
Lint	1s
Size Check	1s
Remix (Node ${{ matrix.node }}) Tests	1s
Prepare E2E tests	1s
Bun Unit Tests	1s
Deno Unit Tests	1s
Check for faulty .d.ts files	1s
Browser Unit Tests	1s
Node (${{ matrix.node }})${{ (matrix.typescript && format(' (TS {0})', matrix.typescript)) \|\| '' }} Integration Tests	1s
Cloudflare Integration Tests	1s
All required jobs passed or were skipped	3s
E2E ${{ matrix.label \|\| matrix.test-application }} Test (optional)	1s
E2E ${{ matrix.label \|\| matrix.test-application }} Test	1s
	5m 19s

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