[jest] add types of jest.now and withImplementation

[mrazauskas]

Please fill in this template.

• Use a meaningful title for the pull request. Include the name of the package modified.
• Test the change in your own code. (Compile and run.)
• Add or edit tests to reflect the change.
• Follow the advice from the readme.
• Avoid common mistakes.
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If changing an existing definition:

• Provide a URL to documentation or source code which provides context for the suggested changes: jest.now() was added in (jest-fake-timers): Add now() API to get the fake clock time jestjs/jest#13244; withImplementation was add in feat(@jest/mock): Add withImplementation jestjs/jest#13281
• If this PR brings the type definitions up to date with a new version of the JS library, update the version number in the header.

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Summary

Jest v29.1 shipped earlier today (release notes) with two new features: jest.now and withImplementation. This PR adds typings for these features.

[typescript-bot]

@mrazauskas Thank you for submitting this PR!

This is a live comment which I will keep updated.

1 package in this PR

• jest — on npm, on unpkg
  • owner-approval: @r3nya

Code Reviews

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You can test the changes of this PR in the Playground.

Status

• ✅ No merge conflicts
• ✅ Continuous integration tests have passed
• ✅ Most recent commit is approved by a DT maintainer

All of the items on the list are green. To merge, you need to post a comment including the string "Ready to merge" to bring in your changes.

---

Diagnostic Information: What the bot saw about this PR

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[typescript-bot]

🔔 @NoHomey @jwbay @asvetliakov @alexjoverm @epicallan @ikatyang @wsmd @JamieMason @douglasduteil @ahnpnl @UselessPickles @r3nya @Hotell @sebald @andys8 @antoinebrault @gstamac @ExE-Boss @quassnoi @Belco90 @tonyhallett @ycmjason @pawfa @regevbr @GerkinDev @domdomegg — please review this PR in the next few days. Be sure to explicitly select Approve or Request Changes in the GitHub UI so I know what's going on.

[typescript-bot]

@mrazauskas: Everything looks good here. I am ready to merge this PR (at 945098b) on your behalf whenever you think it's ready.

If you'd like that to happen, please post a comment saying:

Ready to merge

and I'll merge this PR almost instantly. Thanks for helping out! ❤️

(@NoHomey, @jwbay, @asvetliakov, @alexjoverm, @epicallan, @ikatyang, @wsmd, @JamieMason, @douglasduteil, @ahnpnl, @UselessPickles, @r3nya, @Hotell, @sebald, @andys8, @antoinebrault, @gstamac, @ExE-Boss, @quassnoi, @Belco90, @tonyhallett, @ycmjason, @pawfa, @regevbr, @GerkinDev, @domdomegg: you can do this too.)

[mrazauskas]

Ready to merge