release process: update dependencies (#280)

Part of the check-list at https://github.com/ooni/probe/issues/1369

internal/engine/netx/quicdialer/connectionstate.go

@@ -1,5 +1,3 @@
-// +build !go1.15
-
 package quicdialer
 
 import (
@@ -10,5 +8,5 @@ import (
 
 // ConnectionState returns the ConnectionState of a QUIC Session.
 func ConnectionState(sess quic.EarlySession) tls.ConnectionState {
-	return tls.ConnectionState{}
+	return sess.ConnectionState().TLS.ConnectionState
 }

internal/engine/netx/quicdialer/connectionstate_go1.15.go

@@ -1,14 +0,0 @@
-// +build go1.15
-
-package quicdialer
-
-import (
-	"crypto/tls"
-
-	"github.com/lucas-clemente/quic-go"
-)
-
-// ConnectionState returns the ConnectionState of a QUIC Session.
-func ConnectionState(sess quic.EarlySession) tls.ConnectionState {
-	return sess.ConnectionState().ConnectionState
-}