Registry: Support `date-time-local` and `time-local`

[ya7010]

Which registry do you want to contribute to

• Alternative Schema Type Registry
• Draft Features Registry
• Specification Extension Registry
• Format Registry
• Extension Namespace Registry
• Tag Kind Registry

Describe your contribution
To clarify the use of JSON Schema in TOML, add a date/time format without a time zone.

Describe alternatives you've considered

Additional context
#4533

[handrews]

@ya7010 If you want to move this forward, you can open a PR against the format registry on the gh-pages branch. I'm going to close this issue as a duplicate of #4533 (although thanks for filling out our new registry checkboxes correctly!), but really all that is needed is for someone to make a PR and answer questions while it is reviewed. In the column for the format where it wants a specification, just link to the TOML specification as you did in the other issue.

[handrews]

Oh wait this is an issue and that's a discussion... meh, we need to sort out how to handle issues vs discussions, for now I'll re-open as opening an issue for this is not wrong.

[ya7010]

Merged 🎉