Update application version to latest version from networkservicemesh/…

…cmd-nse-icmp-responder-vpp@master networkservicemesh/cmd-nse-icmp-responder-vpp#52

networkservicemesh/cmd-nse-icmp-responder-vpp PR link: networkservicemesh/cmd-nse-icmp-responder-vpp#52

networkservicemesh/cmd-nse-icmp-responder-vpp commit message:
commit e87b4f44b926d51e7fa98f9446309755724e6d74
Author: Network Service Mesh Bot <60070799+nsmbot@users.noreply.github.com>
Date:   Wed Mar 31 04:47:47 2021 -0500

    Merge f6d6e39fd1d3e5442607502a6500ca8955882357 into 6606f780fe2000ac196b01940839a30c2035d55b

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:e47f7f5f
+          image: networkservicemeshci/cmd-nse-icmp-responder-vpp:e87b4f44
           imagePullPolicy: IfNotPresent
           env:
             - name: SPIFFE_ENDPOINT_SOCKET