Bump React

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@types/react (source)	^19.0.10 -> ^19.1.6
@types/react (source)	^19.0.12 -> ^19.1.6
@types/react-dom (source)	^19.0.4 -> ^19.1.5
react (source)	^19.0.0 -> ^19.1.0
react-dom (source)	^19.0.0 -> ^19.1.0

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Release Notes

facebook/react (react)

v19.1.0

Compare Source

facebook/react (react-dom)

v19.1.0

Compare Source

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[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.

[LukasTy]

@JCQuintas I think we agreed to postpone the bump until we find the time to investigate the cause of very significant CI runtime increase. 🤔
#17216
Have you checked it?

It looks like the test_browser is now taking almost double the time, while test_unit increased runtime by ~10%. 🤔 🙈

P.S. More recent test_unit runs are taking even longer. 🤔

[bernardobelchior]

Last time we reverted this because of the increase in time it took to run test_browser. It seems to have increased from around 7min (run 1, run 2) to around 11min (this PR's run).

From looking at React's issues, there doesn't seem to be any issue mentioning worse performance when running tests, so maybe it's something related to our setup?

[bernardobelchior]

Did a small test on my Macbook Pro Apple M4 Pro, 48GB RAM and I can also reproduce the difference locally:

Seconds	React 19.1: pnpm test:unit:browser --coverage	React 19.0: pnpm test:unit:browser --coverage	React 19.1: pnpm test:unit:browser	React 19.0: pnpm test:unit:browser
Run 1	91	85	62	59
Run 2	84	78	56	51
Run 3	84	78	56	52
Run 4	83	78	56	52
Avg [1]	83.67	78	56	51.67

[1] Excluding first run

The results, excluding the first run, are as follows:

• pnpm test:unit:browser --coverage: React 19.1 is 7.3% slower on average than React 19.0
• pnpm test:unit:browser: React 19.1 is 8.4% slower on average than React 19.0

On CI, it seems that pnpm test:unit:browser --coverage is around 57% slower when running React 19.1 vs React 19.0.

However, CI's config is slightly different. In CI, we disable file parallelism, run the test inside a single child_process and only use one thread.

[JCQuintas]

config is slightly different.

You can try CI=true pnpm test:unit:browser --coverage to run the same config as CI

[JCQuintas]

@JCQuintas I think we agreed to postpone the bump until we find the time to investigate the cause of very significant CI runtime increase. 🤔 #17216 Have you checked it?

TBH I completely forgot about this. 😢

It didn't have a "request for change" so I assumed it was good to go.