doc: fix undici version in changelog

The last PR to update the undici version in V18 and
V16 had two commits. Once to update to 5.9.1 and one
to upodate to 5.10.0. Unfortunately it looks like
when squashed the commit indicates 5.9.1 which was
reported as confusing in the changelogs.

I don't think we can necessarily change the commit
message in the commit, but I think having the
changelogs indicate the correct version makes
sense even without that change.

This PR updates the version in the two changelogs.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #44982
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Beth Griggs <bethanyngriggs@gmail.com>
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>

doc/changelogs/CHANGELOG_V18.md

@@ -417,7 +417,7 @@ More detailed information on each of the vulnerabilities can be found in [Septem
 * \[[`754d26a53e`](https://github.com/nodejs/node/commit/754d26a53e)] - **deps**: patch V8 to 10.2.154.15 (Michaël Zasso) [#44294](https://github.com/nodejs/node/pull/44294)
 * \[[`1b50ff2600`](https://github.com/nodejs/node/commit/1b50ff2600)] - **deps**: update icu tzdata to 2022b (Matías Zúñiga) [#44283](https://github.com/nodejs/node/pull/44283)
 * \[[`1e451dca99`](https://github.com/nodejs/node/commit/1e451dca99)] - **deps**: upgrade llhttp to 6.0.9 (Paolo Insogna) [#44344](https://github.com/nodejs/node/pull/44344)
-* \[[`57da3db522`](https://github.com/nodejs/node/commit/57da3db522)] - **deps**: update undici to 5.9.1 (Node.js GitHub Bot) [#44319](https://github.com/nodejs/node/pull/44319)
+* \[[`57da3db522`](https://github.com/nodejs/node/commit/57da3db522)] - **deps**: update undici to 5.10.0 (Node.js GitHub Bot) [#44319](https://github.com/nodejs/node/pull/44319)
 * \[[`1c87a7e8f6`](https://github.com/nodejs/node/commit/1c87a7e8f6)] - **doc**: add missing parenthesis in TLSSocket section (Tobias Nießen) [#44512](https://github.com/nodejs/node/pull/44512)
 * \[[`05006eddb2`](https://github.com/nodejs/node/commit/05006eddb2)] - **doc**: do not use "Returns:" for crypto.constants (Tobias Nießen) [#44481](https://github.com/nodejs/node/pull/44481)
 * \[[`54b6ed58bc`](https://github.com/nodejs/node/commit/54b6ed58bc)] - **doc**: use serial comma in addons docs (Tobias Nießen) [#44482](https://github.com/nodejs/node/pull/44482)