build(deps): bump github.com/golang/protobuf from 1.3.4 to 1.3.5

Bumps [github.com/golang/protobuf](https://github.com/golang/protobuf) from 1.3.4 to 1.3.5.
- [Release notes](https://github.com/golang/protobuf/releases)
- [Commits](golang/protobuf@v1.3.4...v1.3.5)

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

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/go-kit/kit v0.10.0
 	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef // indirect
-	github.com/golang/protobuf v1.3.4
+	github.com/golang/protobuf v1.3.5
 	github.com/google/btree v1.0.0 // indirect
 	github.com/google/certificate-transparency-go v1.0.21 // indirect
 	github.com/google/uuid v1.1.1 // indirect

go.sum

@@ -118,6 +118,8 @@ github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.3.4 h1:87PNWwrRvUSnqS4dlcBU/ftvOIBep4sYuBLlh6rX2wk=
 github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/golang/protobuf v1.3.5 h1:F768QJ1E9tib+q5Sc8MkdJi1RxLTbRcTf8LJV56aRls=
+github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=