chore(release): prepare for 1.6.5 (#359)

## [1.6.5] - 2026-05-12

### 🐛 Bug Fixes

- *(deps)* Update kubernetes monorepo to v0.36.0 (#352)
- *(deps)* Update golang.org/x/net to v0.53.0 for GO-2026-4918 (#356)

### ⚙️ Miscellaneous Tasks

- *(deps)* Update golang:1.26.2 docker digest to e1203b8 (#350)
- *(deps)* Update golang docker tag to v1.26.3 (#355)
- *(deps)* Update go toolchain directive to v1.26.3 (#354)

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---

**Note:** Please use **Squash Merge** when merging this PR.

Reviewed-on: #359
Co-authored-by: Unbound Releaser <releaser@unbound.se>
Co-committed-by: Unbound Releaser <releaser@unbound.se>

.version

@@ -1,3 +1,3 @@
 {
-  "version": "1.6.4"
+  "version": "1.6.5"
 }

CHANGELOG.md

@@ -2,6 +2,19 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.6.5] - 2026-05-12
+
+### 🐛 Bug Fixes
+
+- *(deps)* Update kubernetes monorepo to v0.36.0 (#352)
+- *(deps)* Update golang.org/x/net to v0.53.0 for GO-2026-4918 (#356)
+
+### ⚙️ Miscellaneous Tasks
+
+- *(deps)* Update golang:1.26.2 docker digest to e1203b8 (#350)
+- *(deps)* Update golang docker tag to v1.26.3 (#355)
+- *(deps)* Update go toolchain directive to v1.26.3 (#354)
+
 ## [1.6.4] - 2026-04-19
 
 ### 🐛 Bug Fixes