chore(deps): update dependency @payloadcms/richtext-slate to v1.5.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@payloadcms/richtext-slate (source)	1.5.0 -> 1.5.1

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Release Notes

payloadcms/payload (@​payloadcms/richtext-slate)

### [`v1.5.1`](https://togithub.com/payloadcms/payload/blob/HEAD/CHANGELOG.md#151-2023-01-04) [Compare Source](https://togithub.com/payloadcms/payload/compare/v1.5.0...v1.5.1) ##### Bug Fixes - reverts components directory back to ts ([1bbf099](https://togithub.com/payloadcms/payload/commit/1bbf099fe052e767512e111f8f2b778c1b9c59d9))

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