Update go.mod and go.sum to latest version from networkservicemesh/sd…

…k@main networkservicemesh/sdk#

networkservicemesh/sdk PR link: https://github.com/networkservicemesh/sdk/pull/

networkservicemesh/sdk commit message:
commit 2d3ff8c3db2a4439a44db7aa94979de8bf081c02
Author: Vladimir Popov <vladimir.popov@xored.com>
Date:   Tue Jun 15 17:32:02 2021 +0700

    Use default dial timeout for sandbox NSC (#977)

    Signed-off-by: Vladimir Popov <vladimir.popov@xored.com>

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

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/golang/protobuf v1.4.3
 	github.com/google/uuid v1.1.2
 	github.com/networkservicemesh/api v0.0.0-20210609080649-aa4a0cc6c9ea
-	github.com/networkservicemesh/sdk v0.0.0-20210610150007-597eef7f8d69
+	github.com/networkservicemesh/sdk v0.0.0-20210615103202-2d3ff8c3db2a
 	github.com/onsi/ginkgo v1.13.0 // indirect
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.7.0

go.sum

@@ -249,8 +249,8 @@ github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OS
 github.com/nats-io/stan.go v0.6.0/go.mod h1:eIcD5bi3pqbHT/xIIvXMwvzXYElgouBvaVRftaE+eac=
 github.com/networkservicemesh/api v0.0.0-20210609080649-aa4a0cc6c9ea h1:Oz3k/v09FYoXiK7riuotF/vKDxCQBPc+GnwlGmppGds=
 github.com/networkservicemesh/api v0.0.0-20210609080649-aa4a0cc6c9ea/go.mod h1:B6meq/SWjWR6bGXZdXPfbOeaBK+T1JayLdtEJQCsXKU=
-github.com/networkservicemesh/sdk v0.0.0-20210610150007-597eef7f8d69 h1:i5FsyWfCcQs5qNNAWnd96Pp5+77k4T4CIgtE3IehlRI=
-github.com/networkservicemesh/sdk v0.0.0-20210610150007-597eef7f8d69/go.mod h1:6URyucmK3kQQ45Eg7fo57zDtrwIceNx3wBA3OuqN4S8=
+github.com/networkservicemesh/sdk v0.0.0-20210615103202-2d3ff8c3db2a h1:S0IufK19s9MtjiRyX/B7HlJFaHCOGFd5WXbEX43rI8I=
+github.com/networkservicemesh/sdk v0.0.0-20210615103202-2d3ff8c3db2a/go.mod h1:6URyucmK3kQQ45Eg7fo57zDtrwIceNx3wBA3OuqN4S8=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
 github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=