Bump github.com/grpc-ecosystem/grpc-gateway from 1.14.7 to 1.14.8 (#547)

Bumps [github.com/grpc-ecosystem/grpc-gateway](https://github.com/grpc-ecosystem/grpc-gateway) from 1.14.7 to 1.14.8.
- [Release notes](https://github.com/grpc-ecosystem/grpc-gateway/releases)
- [Changelog](https://github.com/grpc-ecosystem/grpc-gateway/blob/master/CHANGELOG.md)
- [Commits](https://github.com/grpc-ecosystem/grpc-gateway/compare/v1.14.7...v1.14.8)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/gorilla/mux v1.8.0
 	github.com/gorilla/websocket v1.4.2
 	github.com/grpc-ecosystem/go-grpc-middleware v1.2.1
-	github.com/grpc-ecosystem/grpc-gateway v1.14.7
+	github.com/grpc-ecosystem/grpc-gateway v1.14.8
 	github.com/kat-co/vala v0.0.0-20170210184112-42e1d8b61f12
 	github.com/kr/text v0.2.0 // indirect
 	github.com/lib/pq v1.8.0

go.sum

@@ -185,6 +185,8 @@ github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgf
 github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/grpc-ecosystem/grpc-gateway v1.14.7 h1:Nk5kuHrnWUTf/0GL1a/vchH/om9Ap2/HnVna+jYZgTY=
 github.com/grpc-ecosystem/grpc-gateway v1.14.7/go.mod h1:oYZKL012gGh6LMyg/xA7Q2yq6j8bu0wa+9w14EEthWU=
+github.com/grpc-ecosystem/grpc-gateway v1.14.8 h1:hXClj+iFpmLM8i3lkO6i4Psli4P2qObQuQReiII26U8=
+github.com/grpc-ecosystem/grpc-gateway v1.14.8/go.mod h1:NZE8t6vs6TnwLL/ITkaK8W3ecMLGAbh2jXTclvpiwYo=
 github.com/hashicorp/consul/api v1.1.0/go.mod h1:VmuI/Lkw1nC05EYQWNKwWGbkg+FbDBtguAZLlVdkD9Q=
 github.com/hashicorp/consul/sdk v0.1.1/go.mod h1:VKf9jXwCTEY1QZP2MOLRhb5i/I/ssyNV1vwHyQBF0x8=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=