chore(release): prepare for 1.6.3 (#340)

## [1.6.3] - 2026-03-19

### 🐛 Bug Fixes

- *(deps)* Update kubernetes monorepo to v0.35.3 (#339)

### ⚙️ Miscellaneous Tasks

- *(deps)* Update golang:1.26.1 docker digest to 984bf90 (#337)

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

Reviewed-on: #340
Co-authored-by: Unbound Releaser <releaser@unbound.se>
Co-committed-by: Unbound Releaser <releaser@unbound.se>

CHANGELOG.md

@@ -2,6 +2,16 @@
 
 All notable changes to this project will be documented in this file.
 
+## [1.6.3] - 2026-03-19
+
+### 🐛 Bug Fixes
+
+- *(deps)* Update kubernetes monorepo to v0.35.3 (#339)
+
+### ⚙️ Miscellaneous Tasks
+
+- *(deps)* Update golang:1.26.1 docker digest to 984bf90 (#337)
+
 ## [1.6.2] - 2026-03-06
 
 ### 🐛 Bug Fixes