chore(deps): update dependency payload to v2.21.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
payload (source)	2.20.0 -> 2.21.0

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Release Notes

payloadcms/payload (payload)

### [`v2.21.0`](https://togithub.com/payloadcms/payload/blob/HEAD/CHANGELOG.md#2210-2024-06-14) [Compare Source](https://togithub.com/payloadcms/payload/compare/v2.20.0...v2.21.0) ##### Features - draft validation ([#​6746](https://togithub.com/payloadcms/payload/issues/6746)) ([ff70fd9](https://togithub.com/payloadcms/payload/commit/ff70fd9813ec7dc14bf54d3457c25e145fe01699)) ##### Bug Fixes - adjust version status pill when unpublished ([#​6744](https://togithub.com/payloadcms/payload/issues/6744)) ([b7e8529](https://togithub.com/payloadcms/payload/commit/b7e852993beaaa465e38caa36e75e870819516b5)) - use correct time for isLocked check ([#​6052](https://togithub.com/payloadcms/payload/issues/6052)) ([3b4bb30](https://togithub.com/payloadcms/payload/commit/3b4bb3065a6d2ac2f7d6aafd0fb4a35b580f3662)) - unable to save animated file types with undefined image sizes ([#​6733](https://togithub.com/payloadcms/payload/issues/6733)) ([e40570b](https://togithub.com/payloadcms/payload/commit/e40570bd0d64660bb2ae5b5785b4c85c684ca9ab)), closes [#​6727](https://togithub.com/payloadcms/payload/issues/6727)

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