Merge branch 'renovate/contrib.go.opencensus.io-exporter-zipkin-0.x' into 'master'

Update module contrib.go.opencensus.io/exporter/zipkin to v0.1.2

See merge request !10

go.mod

@@ -3,7 +3,7 @@ module git.autistici.org/ai3/go-common
 go 1.11
 
 require (
-	contrib.go.opencensus.io/exporter/zipkin v0.1.1
+	contrib.go.opencensus.io/exporter/zipkin v0.1.2
 	github.com/amoghe/go-crypt v0.0.0-20191109212615-b2ff80594b7f
 	github.com/bbrks/wrap/v2 v2.5.0
 	github.com/cenkalti/backoff v2.2.1+incompatible