Merge branch 'renovate/alpine-3.x' into 'development'

Update alpine Docker tag to v3.14

See merge request !66

vendor/github.com/docker/distribution/Dockerfile

@@ -16,7 +16,7 @@ WORKDIR $DISTRIBUTION_DIR
 COPY . $DISTRIBUTION_DIR
 RUN CGO_ENABLED=0 make PREFIX=/go clean binaries && file ./bin/registry | grep "statically linked"
 
-FROM alpine:3.13
+FROM alpine:3.14
 
 RUN set -ex \
     && apk add --no-cache ca-certificates apache2-utils