add utc callout to rotation fields

[kpcraig]

This doc change is related to https://github.com/hashicorp/vault-enterprise/pull/9942

[github-actions]

Vercel Previews Deployed

Name	Status	Preview	Updated (UTC)
Dev Portal	✅ Ready (Inspect)	Visit Preview	Tue Oct 21 19:12:57 UTC 2025
Unified Docs API	✅ Ready (Inspect)	Visit Preview	Tue Oct 21 19:06:51 UTC 2025

[github-actions]

Broken Link Checker

No broken links found! 🎉

[kpcraig]

The anticipation is that this is also going to get backported to 1.20 and 1.19 - is the proper way to do that to open a PR for those folders on main, or should I add them here?

[schavis]

The anticipation is that this is also going to get backported to 1.20 and 1.19 - is the proper way to do that to open a PR for those folders on main, or should I add them here?

We have a content freeze in place atm because we're prepped to merge the release branch to main once the RC binaries go out. Once that happens, you can change the target for this PR and add those directories as well :)

[schavis]

We also need to update the summary table for 1.21.x under content/vault/global/partials/important-changes/summary-tables

[schavis]

@kpcraig Approved the PR, but you need to change your merge target to main. The release branch merged last week when we released the RC.

[kpcraig]

gonna rebase and force push I think since clearly I confused git and github