Update application version to latest version from networkservicemesh/…

…cmd-nsmgr@main networkservicemesh/cmd-nsmgr#

networkservicemesh/cmd-nsmgr PR link: https://github.com/networkservicemesh/cmd-nsmgr/pull/

networkservicemesh/cmd-nsmgr commit message:
commit c0886e54826bebafda86ce14765b76d9b0ab430a
Author: Авраменко Михаил <avramenkomihail15@gmail.com>
Date:   Thu Apr 22 18:46:47 2021 +0700

    #759 Removed pkg/tools/signalctx and used NotifyContext(go 1.16) (#249)

    * changed signalctx method call to NotifyContext(go 1.16)

    Signed-off-by: Mikhail <avramenkomihail15@gmail.com>

    * ran go generate

    Signed-off-by: Mikhail <avramenkomihail15@gmail.com>

    * reran go generation tool

    Signed-off-by: Mikhail <avramenkomihail15@gmail.com>

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

apps/nsmgr/nsmgr.yaml

@@ -15,7 +15,7 @@ spec:
         app: nsmgr
     spec:
       containers:
-        - image: networkservicemeshci/cmd-nsmgr:701ff05a
+        - image: networkservicemeshci/cmd-nsmgr:c0886e54
           imagePullPolicy: IfNotPresent
           name: nsmgr
           ports: