Update dependency sinon to v15

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sinon (source)	^14.0.2 -> ^15.0.0

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Release Notes

sinonjs/sinon

v15.0.0

Compare Source

• b75fbfa9
  Fix 2448: remove custom formatter (Morgan Roderick)

  Remove option to pass a custom formatter.

  The sub libraries of Sinon has long moved on to use util.inspect from
  Node. By using that in Sinon itself, we align all the libraries.

Released by Morgan Roderick on 2022-11-28.

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Configuration

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[renovate]

Renovate Ignore Notification

As this PR has been closed unmerged, Renovate will ignore this upgrade and you will not receive PRs for any future 15.x releases. However, if you upgrade to 15.x manually then Renovate will reenable minor and patch updates automatically.

If this PR was closed by mistake or you changed your mind, you can simply rename this PR and you will soon get a fresh replacement PR opened.