Websockets: upgrade websocket libray to 1.4.1 (grafana#21280)

Author: ryantxu

go.mod

@@ -28,7 +28,7 @@ require (
 	github.com/go-xorm/core v0.6.2
 	github.com/go-xorm/xorm v0.7.1
 	github.com/gobwas/glob v0.2.3
-	github.com/gorilla/websocket v1.4.0
+	github.com/gorilla/websocket v1.4.1
 	github.com/gosimple/slug v1.4.2
 	github.com/grafana/grafana-plugin-model v0.0.0-20190930120109-1fc953a61fb4
 	github.com/grafana/grafana-plugin-sdk-go v0.4.0

go.sum

@@ -108,8 +108,8 @@ github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e h1:JKmoR8x90Iww1
 github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gopherjs/gopherjs v0.0.0-20190430165422-3e4dfb77656c h1:7lF+Vz0LqiRidnzC1Oq86fpX1q/iEv2KJdrCtttYjT4=
 github.com/gopherjs/gopherjs v0.0.0-20190430165422-3e4dfb77656c/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
-github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
-github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.4.1 h1:q7AeDBpnBk8AogcD4DSag/Ukw/KV+YhzLj2bP5HvKCM=
+github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/gosimple/slug v1.4.2 h1:jDmprx3q/9Lfk4FkGZtvzDQ9Cj9eAmsjzeQGp24PeiQ=
 github.com/gosimple/slug v1.4.2/go.mod h1:ER78kgg1Mv0NQGlXiDe57DpCyfbNywXXZ9mIorhxAf0=
 github.com/grafana/grafana-plugin-model v0.0.0-20190930120109-1fc953a61fb4 h1:SPdxCL9BChFTlyi0Khv64vdCW4TMna8+sxL7+Chx+Ag=