Merge pull request #6 from jonashackt/renovate/alpine-3.x

Update alpine Docker tag to v3.14

Author: jonashackt

Dockerfile

@@ -7,7 +7,7 @@ ADD hello-world.go /go/src/app
 RUN go build hello-world.go
 
 # We use a Docker multi-stage build here in order that we only take the compiled go executable
-FROM alpine:3.13
+FROM alpine:3.14
 
 LABEL org.opencontainers.image.source="https://github.com/jonashackt/docker-hello-world"