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

…d-registry-memory@main

PR link: networkservicemesh/cmd-registry-memory#500

Commit: 7db3889
Author: Network Service Mesh Bot
Date: 2022-04-25 18:40:15 -0500
Message:
  - Update go.mod and go.sum to latest version from networkservicemesh/sd…
Signed-off-by: NSMBot <nsmbot@networkservicmesh.io>

apps/registry-memory/registry-memory.yaml

@@ -16,7 +16,7 @@ spec:
         "spiffe.io/spiffe-id": "true"
     spec:
       containers:
-        - image: ghcr.io/networkservicemesh/ci/cmd-registry-memory:db3c244
+        - image: ghcr.io/networkservicemesh/ci/cmd-registry-memory:7db3889
           env:
             - name: SPIFFE_ENDPOINT_SOCKET
               value: unix:///run/spire/sockets/agent.sock