docs: Update USERS.md (#5892)
docs: Update USERS.md (#5892)

Signed-off-by: Byungjin Park <7857a52d01e7074b25a11cb8d477efd2370eea69@gmail.com>
argoproj/argo-cd,argoproj/argo-cd,argoproj/argo-cd,argoproj/argo-cd,argoproj/argo-cd