fix: restrict precision option in DATE and TIME to number

[WikiRik]

Pull Request Checklist

• Have you added new tests to prevent regressions?
• If a documentation update is necessary, have you opened a PR to the documentation repository?
• Did you update the typescript typings accordingly (if applicable)?
• Does the description below contain a link to an existing issue (Closes #[issue]) or a description of the issue you are solving?
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Description Of Change

Hopefully unblocks #15799 by restricting the precision option to number | undefined

[ephys]

In the title, did you mean "to number" instead of "to string"?

[WikiRik]

In the title, did you mean "to number" instead of "to string"?

Yes, and in the description as well. Good that you noticed!