Update application version to latest version from networkservicemesh/…

…cmd-nse-icmp-responder-vpp@master networkservicemesh/cmd-nse-icmp-responder-vpp#57

networkservicemesh/cmd-nse-icmp-responder-vpp PR link: networkservicemesh/cmd-nse-icmp-responder-vpp#57

networkservicemesh/cmd-nse-icmp-responder-vpp commit message:
commit f6fe233ce47ca924c0df1ba4422a638ad991476d
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Sat Apr 3 00:19:07 2021 +0000

    Merge c2485a33fb3fef7ea89dc24ea2853023a8ccd5e3 into a9d7115f9f981a52383e2a64928bde06de21c613

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

apps/nse-memif/nse.yaml

@@ -16,7 +16,7 @@ spec:
     spec:
       containers:
         - name: nse
-          image: networkservicemeshci/cmd-nse-icmp-responder-vpp:4bff5810
+          image: networkservicemeshci/cmd-nse-icmp-responder-vpp:f6fe233c
           imagePullPolicy: IfNotPresent
           env:
             - name: SPIFFE_ENDPOINT_SOCKET