test: keep testing React 18

[mxschmitt]

This partially reverts commit 8accb0a which by accident changed the dependencies. We should instead keep testing React 18 and introduce if needed a separate React 19 project.

[github-actions]

Test results for "tests 1"

9 flaky

⚠️ [firefox-page] › tests/page/page-evaluate.spec.ts:403:3 › should throw for too deep reference chain @firefox-ubuntu-22.04-node18
⚠️ [playwright-test] › tests/ui-mode-test-setup.spec.ts:98:5 › should show errors in config @macos-latest-node18-1
⚠️ [webkit-library] › tests/library/browsercontext-proxy.spec.ts:27:3 › should work when passing the proxy only on the context level @webkit-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/video.spec.ts:379:5 › screencast › should capture navigation @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › tests/page/page-leaks.spec.ts:82:5 › click should not leak @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › tests/page/page-leaks.spec.ts:107:5 › fill should not leak @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › tests/page/page-leaks.spec.ts:161:5 › waitFor should not leak @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › tests/page/page-screenshot.spec.ts:197:5 › page screenshot › should run in parallel @webkit-ubuntu-22.04-node18
⚠️ [webkit-page] › tests/page/page-set-input-files.spec.ts:147:3 › should upload large file @webkit-ubuntu-22.04-node18

37813 passed, 655 skipped
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Merge workflow run.