Update dependency @web/test-runner to v0.12.16

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@web/test-runner	0.12.15 -> 0.12.16

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Release Notes

modernweb-dev/web

### [`v0.12.16`](https://togithub.com/modernweb-dev/web/releases/@​web/test-runner@0.12.16) [Compare Source](https://togithub.com/modernweb-dev/web/compare/@web/test-runner@0.12.15...@web/test-runner@0.12.16) ##### Patch Changes - [`b146365`](https://togithub.com/modernweb-dev/web/commit/b146365a): Add `buildCache` option to the visual regression config to support always saving the "current" screenshot. Make the `update` option in the visual regression config _strict_, and only save "current" shots as "baseline" when it is set to `true`. - Updated dependencies [b146365a] - [@​web/test-runner-core](https://togithub.com/web/test-runner-core)[@​0](https://togithub.com/0).10.13

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size-limit report 📦

Path	Size
dist/react-reactions.cjs.production.min.js	53.55 KB (0%)
dist/react-reactions.esm.js	53.63 KB (0%)