fix: Add claims and grpc to the middleware list.

Claims and grpc weren't in the middleware list in server/middleware.go.

Signed-off-by: Alastair Houghton <alastair@alastairs-place.net>

server/middleware.go

@@ -9,6 +9,8 @@ import (
 
 	"github.com/dexidp/dex/middleware"
 	"github.com/dexidp/dex/middleware/groups"
+	"github.com/dexidp/dex/middleware/claims"
+	"github.com/dexidp/dex/middleware/grpc"
 
 	"github.com/dexidp/dex/connector"
 	"github.com/dexidp/dex/pkg/log"
@@ -28,7 +30,9 @@ type MiddlewareConfig interface {
 // MiddlewaresConfig variable provides an easy way to return a config struct
 // depending on the middleware type.
 var MiddlewaresConfig = map[string]func() MiddlewareConfig{
+	"claims": func() MiddlewareConfig { return new(claims.Config) },
 	"groups": func() MiddlewareConfig { return new(groups.Config) },
+	"grpc": func() MiddlewareConfig { return new(grpc.Config) },
 }
 
 // openMiddleware will parse the middleware config and open the middleware.