Fix jpillora#390: Use code to generate certificates for client & server (jpillora#400)

Author: GuillaumeSmaha

go.mod

@@ -5,16 +5,13 @@ go 1.21
 require (
 	github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5
 	github.com/fsnotify/fsnotify v1.6.0
-	github.com/gorilla/websocket v1.4.2
-	github.com/jpillora/ansi v1.0.2 // indirect
+	github.com/gorilla/websocket v1.5.0
 	github.com/jpillora/backoff v1.0.0
 	github.com/jpillora/requestlog v1.0.0
 	github.com/jpillora/sizestr v1.0.0
-	github.com/tomasen/realip v0.0.0-20180522021738-f0c99a92ddce // indirect
-	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
-	golang.org/x/net v0.0.0-20210614182718-04defd469f4e
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
-	golang.org/x/term v0.0.0-20210615171337-6886f2dfbf5b // indirect
+	golang.org/x/crypto v0.13.0
+	golang.org/x/net v0.15.0
+	golang.org/x/sync v0.3.0
 )
 
 require (