Bump github.com/gorilla/websocket from 1.4.2 to 1.5.0 (cosmos#320)

Bumps [github.com/gorilla/websocket](https://github.com/gorilla/websocket) from 1.4.2 to 1.5.0.
- [Release notes](https://github.com/gorilla/websocket/releases)
- [Commits](gorilla/websocket@v1.4.2...v1.5.0)

---
updated-dependencies:
- dependency-name: github.com/gorilla/websocket
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Tomasz Zdybał <tomek@zdybal.lap.pl>

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/golang/protobuf v1.5.2
 	github.com/google/orderedcode v0.0.1
 	github.com/gorilla/rpc v1.2.0
-	github.com/gorilla/websocket v1.4.2
+	github.com/gorilla/websocket v1.5.0
 	github.com/ipfs/go-log v1.0.5
 	github.com/libp2p/go-libp2p v0.15.1
 	github.com/libp2p/go-libp2p-core v0.9.0