Update application version to latest version from networkservicemesh/…

…cmd-nse-icmp-responder-vpp@master networkservicemesh/cmd-nse-icmp-responder-vpp#44

networkservicemesh/cmd-nse-icmp-responder-vpp PR link: networkservicemesh/cmd-nse-icmp-responder-vpp#44

networkservicemesh/cmd-nse-icmp-responder-vpp commit message:
commit b3c705153f14376884b5e764d24d3b77dc2d8f00
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Wed Mar 24 03:01:07 2021 -0500

    Merge 6f83c0e21530338790ed621ee23cd95359f6aca4 into 6ccc17e24b42e39cd6064d47363bdf668600721e

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:b399f638
+          image: networkservicemeshci/cmd-nse-icmp-responder-vpp:b3c70515
           imagePullPolicy: IfNotPresent
           env:
             - name: SPIFFE_ENDPOINT_SOCKET