Merge branch 'renovate/registry.hub.docker.com-library-golang-1.x' into 'main'

Update registry.hub.docker.com/library/golang Docker tag to v1.21.3

See merge request !47

Dockerfile

 # https://docs.docker.com/language/golang/build-images/#multi-stage-builds
 # https://hub.docker.com/_/golang/tags
-FROM  registry.hub.docker.com/library/golang:1.21.2-alpine3.18 AS build
+FROM  registry.hub.docker.com/library/golang:1.21.3-alpine3.18 AS build
 
 WORKDIR /app