Update application version to latest version from networkservicemesh/…

…cmd-registry-proxy-dns@main networkservicemesh/cmd-registry-proxy-dns#

networkservicemesh/cmd-registry-proxy-dns PR link: https://github.com/networkservicemesh/cmd-registry-proxy-dns/pull/

networkservicemesh/cmd-registry-proxy-dns commit message:
commit 2fe73c439fefafc129d00c2859e096966b9257e1
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Mon Jun 7 04:12:37 2021 -0500

    Update go.mod and go.sum to latest version from networkservicemesh/sd…

Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/registry-proxy-dns/registry-proxy-dns.yaml

@@ -15,7 +15,7 @@ spec:
         app: registry-proxy
     spec:
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-registry-proxy-dns:eeb40cc
+        - image: ghcr.io/networkservicemesh/ci/cmd-registry-proxy-dns:2fe73c4
           env:
             - name: SPIFFE_ENDPOINT_SOCKET
               value: unix:///run/spire/sockets/agent.sock