build(deps): bump github.com/edgexfoundry/app-functions-sdk-go (#118)

Bumps [github.com/edgexfoundry/app-functions-sdk-go](https://github.com/edgexfoundry/app-functions-sdk-go) from 1.2.1-dev.22 to 1.2.1-dev.23.
- [Release notes](https://github.com/edgexfoundry/app-functions-sdk-go/releases)
- [Changelog](https://github.com/edgexfoundry/app-functions-sdk-go/blob/master/CHANGELOG.md)
- [Commits](edgexfoundry/app-functions-sdk-go@v1.2.1-dev.22...v1.2.1-dev.23)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -2,4 +2,4 @@ module github.com/edgexfoundry/app-service-configurable
 
 go 1.13
 
-require github.com/edgexfoundry/app-functions-sdk-go v1.2.1-dev.22
+require github.com/edgexfoundry/app-functions-sdk-go v1.2.1-dev.23