Use public.ecr.aws for golang image

Switch public.ecr.aws to avoid hitting rate limiting with Dockerhub.

Signed-off-by: Arnaud Meukam <[email protected]>

Author: ameukam

Dockerfile

@@ -15,7 +15,7 @@
 # limitations under the License.
 
 # Build the manager binary
-FROM golang:1.19.5 as toolchain
+FROM public.ecr.aws/docker/library/golang:1.19.5 as toolchain
 
 # Run this with docker build --build_arg $(go env GOPROXY) to override the goproxy
 ARG goproxy=https://proxy.golang.org