Bump github.com/golang/mock from 1.4.0 to 1.4.3

Bumps [github.com/golang/mock](https://github.com/golang/mock) from 1.4.0 to 1.4.3.
- [Release notes](https://github.com/golang/mock/releases)
- [Changelog](https://github.com/golang/mock/blob/master/.goreleaser.yml)
- [Commits](golang/mock@v1.4.0...v1.4.3)

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

go.mod

@@ -5,7 +5,7 @@ go 1.12
 require (
 	github.com/aws/aws-sdk-go v1.29.8
 	github.com/bndr/gojenkins v0.0.0-00010101000000-000000000000
-	github.com/golang/mock v1.4.0
+	github.com/golang/mock v1.4.3
 	github.com/hashicorp/go-multierror v1.0.0
 	github.com/jinzhu/copier v0.0.0-20190625015134-976e0346caa8
 	github.com/mitchellh/mapstructure v1.1.2

go.sum

@@ -85,6 +85,8 @@ github.com/golang/mock v1.3.1 h1:qGJ6qTW+x6xX/my+8YUVl4WNpX9B7+/l2tRsHGZ7f2s=
 github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
 github.com/golang/mock v1.4.0 h1:Rd1kQnQu0Hq3qvJppYSG0HtP+f5LPPUiDswTLiEegLg=
 github.com/golang/mock v1.4.0/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
+github.com/golang/mock v1.4.3 h1:GV+pQPG/EUUbkh47niozDcADz6go/dUwhVzdUQHIVRw=
+github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=