Bump golang.org/x/mod from 0.3.0 to 0.4.0 in /go_modules/helpers

Bumps [golang.org/x/mod](https://github.com/golang/mod) from 0.3.0 to 0.4.0.
- [Release notes](https://github.com/golang/mod/releases)
- [Commits](golang/mod@v0.3.0...v0.4.0)

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

go_modules/helpers/go.mod

@@ -6,7 +6,7 @@ require (
 	github.com/Masterminds/vcs v1.13.1
 	github.com/dependabot/dependabot-core/go_modules/helpers/updater v0.0.0
 	github.com/dependabot/gomodules-extracted v1.2.0
-	golang.org/x/mod v0.3.0
+	golang.org/x/mod v0.4.0
 )
 
 replace github.com/dependabot/dependabot-core/go_modules/helpers/importresolver => ./importresolver

go_modules/helpers/go.sum

@@ -1,14 +1,12 @@
 github.com/Masterminds/vcs v1.13.1 h1:NL3G1X7/7xduQtA2sJLpVpfHTNBALVNSjob6KEjPXNQ=
 github.com/Masterminds/vcs v1.13.1/go.mod h1:N09YCmOQr6RLxC6UNHzuVwAdodYbbnycGHSmwVJjcKA=
-github.com/dependabot/gomodules-extracted v0.0.0-20181020215834-1b2f850478a3 h1:Xj2leY0FVyZuo+p59vkIWG3dIqo+QtjskT5O1iTiywA=
-github.com/dependabot/gomodules-extracted v0.0.0-20181020215834-1b2f850478a3/go.mod h1:+dRXSrUymjpT4yzKtn1QmeknT1S/yAHRr35en18dHp8=
 github.com/dependabot/gomodules-extracted v1.2.0 h1:K/gTyOyhasOt4cjULvOPNiD3MAFGytp4F7e39aB+0Y0=
 github.com/dependabot/gomodules-extracted v1.2.0/go.mod h1:3NWkH8KcZVDM87JuZI8hCZzYbjfUSz98EZI53qjgMgY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 h1:ObdrDkeb4kJdCP557AjRjq69pTHfNouLtWZG7j9rPN8=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/mod v0.3.0 h1:RM4zey1++hCTbCVQfnWeKs9/IEsaBLA8vTkd0WVtmH4=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.4.0 h1:8pl+sMODzuvGJkmj2W4kZihvVb5mKm8pB/X44PIQHv8=
+golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=