Build(deps): bump golang from 1.21.5-alpine to 1.21.6-alpine (#39)

Bumps golang from 1.21.5-alpine to 1.21.6-alpine.

---
updated-dependencies:
- dependency-name: golang
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM golang:1.21.5-alpine AS builder
+FROM golang:1.21.6-alpine AS builder
 
 RUN apk add --update --no-cache gcc g++ git ca-certificates build-base