Bump golang from 1.20.3-alpine3.16 to 1.20.4-alpine3.16 (#366)

Bumps golang from 1.20.3-alpine3.16 to 1.20.4-alpine3.16.

---
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 golang:1.20.3-alpine3.16@sha256:29c4e6e307eac79e5db29a261b243f27ffe0563fa1767e8d9a6407657c9a5f08 AS builder
+FROM golang:1.20.4-alpine3.16@sha256:6469405d7297f82d56195c90a3270b0806ef4bd897aa0628477d9959ab97a577 AS builder
 ARG VERSION=dev-snapshot
 RUN mkdir /build
 RUN apk add --update make