Add multistage build for amvera

docker/Dockerfile-amvera

@@ -1,4 +1,4 @@
-FROM golang:1.22.5
+FROM golang:1.22.5 AS build
 
 WORKDIR /app
 
@@ -7,4 +7,8 @@ COPY . .
 RUN go mod download
 RUN CGO_ENABLED=0 GOOS=linux go build -o /app/bin/anon3anon ./cmd/anon3anon
 
+FROM alpine:latest AS run
+
+COPY --from=build /app/bin/anon3anon /app/bin/
+
 CMD ["/app/bin/anon3anon"]