build: bump golang from 1.20.3-alpine to 1.20.4-alpine

Bumps golang from 1.20.3-alpine to 1.20.4-alpine.

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

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -4,7 +4,7 @@ ARG FOREGO_VERSION=v0.17.0
 FROM nginxproxy/docker-gen:0.10.4-debian AS docker-gen
 
 # Build forego from scratch
-FROM golang:1.20.3 as forego
+FROM golang:1.20.4 as forego
 
 ARG FOREGO_VERSION
 

Dockerfile.alpine

@@ -4,7 +4,7 @@ ARG FOREGO_VERSION=v0.17.0
 FROM nginxproxy/docker-gen:0.10.4 AS docker-gen
 
 # Build forego from scratch
-FROM golang:1.20.3-alpine as forego
+FROM golang:1.20.4-alpine as forego
 
 ARG FOREGO_VERSION