chore(deps): Bump golang from 1.21.3 to 1.21.4 (#370)

Bumps golang from 1.21.3 to 1.21.4.

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

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

Dockerfile

@@ -1,4 +1,4 @@
-FROM --platform=$BUILDPLATFORM golang:1.21.3 as builder
+FROM --platform=$BUILDPLATFORM golang:1.21.4 as builder
 ARG DEBIAN_FRONTEND=noninteractive
 ARG GOARCH=''