chore(deps): Bump github.com/edgexfoundry/go-mod-core-contracts/v2

Bumps [github.com/edgexfoundry/go-mod-core-contracts/v2](https://github.com/edgexfoundry/go-mod-core-contracts) from 2.0.0-dev.78 to 2.0.0-dev.80.
- [Release notes](https://github.com/edgexfoundry/go-mod-core-contracts/releases)
- [Commits](https://github.com/edgexfoundry/go-mod-core-contracts/compare/v2.0.0-dev.78...v2.0.0-dev.80

)
Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -5,7 +5,7 @@ go 1.15
 require (
 	github.com/armon/go-metrics v0.3.3 // indirect
 	github.com/eclipse/paho.mqtt.golang v1.3.3
-	github.com/edgexfoundry/go-mod-core-contracts/v2 v2.0.0-dev.78
+	github.com/edgexfoundry/go-mod-core-contracts/v2 v2.0.0-dev.80
 	github.com/edgexfoundry/go-mod-registry v0.1.27
 	github.com/gorilla/mux v1.8.0
 	github.com/gorilla/websocket v1.4.2