chore(changelog): update changelog for releasing KIC 3.4.6 (#7479)

* update changelog for releasing KIC 3.4.6

* Update CHANGELOG.md

Co-authored-by: Patryk Małek <patryk.malek@konghq.com>

---------

Co-authored-by: Patryk Małek <patryk.malek@konghq.com>

Author: randmonkey

CHANGELOG.md

@@ -7,6 +7,7 @@ Adding a new version? You'll need three changes:
 * Add the diff link, like "[2.7.0]: https://github.com/kong/kubernetes-ingress-controller/compare/v1.2.2...v1.2.3".
   This is all the way at the bottom. It's the thing we always forget.
 --->
+ - [3.4.6](#346)
  - [3.4.5](#345)
  - [3.4.4](#344)
  - [3.4.3](#343)
@@ -105,7 +106,9 @@ Adding a new version? You'll need three changes:
  - [0.0.5](#005)
  - [0.0.4 and prior](#004-and-prior)
 
- ## Unreleased
+ ## [3.4.6]
+
+ > Release date: 2025-06-06
 
  ### Fixed
 
@@ -4070,6 +4073,7 @@ Please read the changelog and test in your environment.
  - The initial versions  were rapildy iterated to deliver
    a working ingress controller.
 
+[3.4.6]: https://github.com/kong/kubernetes-ingress-controller/compare/v3.4.5...v3.4.6
 [3.4.5]: https://github.com/kong/kubernetes-ingress-controller/compare/v3.4.4...v3.4.5
 [3.4.4]: https://github.com/kong/kubernetes-ingress-controller/compare/v3.4.3...v3.4.4
 [3.4.3]: https://github.com/kong/kubernetes-ingress-controller/compare/v3.4.2...v3.4.3