update changelog for juanfont#1339

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

CHANGELOG.md

@@ -8,6 +8,7 @@
 - Update and simplify the documentation to use new `.deb` packages [#1349](https://github.com/juanfont/headscale/pull/1349)
 - Add 32-bit Arm platforms to release process [#1297](https://github.com/juanfont/headscale/pull/1297)
 - Fix longstanding bug that would prevent "\*" from working properly in ACLs (issue [#699](https://github.com/juanfont/headscale/issues/699)) [#1279](https://github.com/juanfont/headscale/pull/1279)
+- Fix issue where IPv6 could not be used in, or while using ACLs (part of [#809](https://github.com/juanfont/headscale/issues/809)) [#1339](https://github.com/juanfont/headscale/pull/1339)
 - Target Go 1.20 and Tailscale 1.38 for Headscale [#1323](https://github.com/juanfont/headscale/pull/1323)
 
 ## 0.21.0 (2023-03-20)