fix: goreleaser use compiled binaries in release (#138)

.docker/Dockerfile-release

@@ -0,0 +1,8 @@
+# Use distroless as minimal base image to package the manager binary
+# Refer to https://github.com/GoogleContainerTools/distroless for more details
+FROM gcr.io/distroless/static:nonroot
+WORKDIR /
+COPY manager .
+USER 65532:65532
+
+ENTRYPOINT ["/manager"]