fix(deps): update module github.com/threedotslabs/watermill to v1.2.0

Author: renovate[bot]

go.mod

@@ -4,8 +4,8 @@ go 1.16
 
 require (
 	github.com/DoNewsCode/core v0.9.2
-	github.com/ThreeDotsLabs/watermill v1.1.1
+	github.com/ThreeDotsLabs/watermill v1.2.0
 	github.com/go-kit/kit v0.11.0
 	github.com/oklog/run v1.1.0
-	github.com/stretchr/testify v1.7.0
+	github.com/stretchr/testify v1.8.1
 )