Bump golang from 1.19.3-alpine to 1.20.1-alpine

Bumps golang from 1.19.3-alpine to 1.20.1-alpine.

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Dockerfile

@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1-experimental
 
-FROM --platform=${BUILDPLATFORM} golang:1.19.3-alpine AS build
+FROM --platform=${BUILDPLATFORM} golang:1.20.1-alpine AS build
 ARG TARGETOS
 ARG TARGETARCH
 WORKDIR /src