Update go.mod and go.sum to networkservicemesh/sdk@v1.12.0 #1234

Job	Run time
excludereplace / excludereplace	3s
checkgomod / checkgomod	19s
docker-build-and-test / push	1m 35s
excludeFmtErrorf / exclude-fmt-errorf	4s
gogenerate / gogenerate	20s
golangci-lint / golangci-lint	53s
restrictNSMDeps / restrict-nsm-deps	9s
shellcheck / shellcheck	9s
yamllint / yamllint	8s
	3m 40s

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