Update application version to latest version from networkservicemesh/…

…cmd-nse-icmp-responder@master networkservicemesh/cmd-nse-icmp-responder#95

networkservicemesh/cmd-nse-icmp-responder PR link: networkservicemesh/cmd-nse-icmp-responder#95

networkservicemesh/cmd-nse-icmp-responder commit message:
commit 18424c88053081b8b3a535fd347da963b92e1216
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Mon Mar 1 01:21:47 2021 -0600

    Merge c00d1eba5b42f2948e1e1f22602dce023ef3fc53 into 3d88679264479af87d9f09f75a5b5e24a06d1129

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

apps/nse-kernel/nse.yaml

@@ -16,7 +16,7 @@ spec:
     spec:
       containers:
         - name: nse
-          image: networkservicemeshci/cmd-nse-icmp-responder:fc4c54a5
+          image: networkservicemeshci/cmd-nse-icmp-responder:18424c88
           imagePullPolicy: IfNotPresent
           env:
             - name: SPIFFE_ENDPOINT_SOCKET