Support release-it v20?

[LeaVerou]

Hi! @release-it-plugins/workspaces@6.0.0 declares:

"peerDependencies": { "release-it": "^17.0.0 || ^18.0.0 || ^19.0.0" }

release-it is now at 20.2.1. Every published version of this plugin, up to and including 6.0.0, tops out at ^19:

plugin	peer range
4.2.1	^14 || ^15.2 || ^16 || ^17
5.0.0 – 5.0.3	^17 || ^18 || ^19
6.0.0	^17 || ^18 || ^19

So a workspace root that wants both the latest release-it and lockstep workspace releasing gets an ERESOLVE. Minimal repro — a package.json with just those two devDependencies, then npm install:

npm error code ERESOLVE
npm error ERESOLVE unable to resolve dependency tree
npm error Found: release-it@20.2.1
npm error Could not resolve dependency:
npm error peer release-it@"^17.0.0 || ^18.0.0 || ^19.0.0" from @release-it-plugins/workspaces@6.0.0
npm error   dev @release-it-plugins/workspaces@"^6.0.0" from the root project

The practical effect is that monorepos using this plugin are pinned to release-it 19 indefinitely, and --legacy-peer-deps / --force is the only escape.

Questions:

1. Is v20 known to be incompatible, or has the peer range simply not been widened yet?
2. If it is just the range, would you take a PR bumping it to include ^20.0.0?

Happy to test against v20 and send a patch if that would help.