Update base image. (#1789)

Signed-off-by: Josh Baird <[email protected]>

Author: joshuabaird

cmd/fluent-manager/Dockerfile

@@ -23,7 +23,7 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} GO111MODULE=on go build
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM kubesphere/distroless-static:nonroot
+FROM gcr.io/distroless/static:nonroot
 WORKDIR /
 COPY --from=builder /workspace/manager .
 USER nonroot:nonroot