dev: Update CHANGELOG

CHANGELOG.md

@@ -25,6 +25,7 @@ For details about compatibility between different releases, see the **Commitment
 ### Fixed
 
 - Providing fixed downlink paths to the `ttn-lw-cli devices downlink {push|replace}` commands using the `-class-b-c.gateways` parameter. The gateways IDs are comma separated, and the antenna index `i` can be provided by suffixing the ID with `:i` (i.e. `my-gateway:0` for antenna index 0). The group index `j` can be provided by suffixing the ID with `:j` (i.e. `my-gateway:0:1` for antenna index 0 and group index 1). The antenna index is mandatory if a group index is to be provided, but optional otherwise.
+- Update to an user's `PrimaryEmailAddress` via a non admin now invalidates the `PrimaryEmailAddressValidatedAt` as it was intended.
 
 ### Security