TUN-6637: Upgrade go version and quic-go

vendor/golang.org/x/net/ipv6/doc.go

@@ -17,8 +17,7 @@
 // On Darwin, this package requires OS X Mavericks version 10.9 or
 // above, or equivalent.
 //
-//
-// Unicasting
+// # Unicasting
 //
 // The options for unicasting are available for net.TCPConn,
 // net.UDPConn and net.IPConn which are created as network connections
@@ -52,8 +51,7 @@
 //		}(c)
 //	}
 //
-//
-// Multicasting
+// # Multicasting
 //
 // The options for multicasting are available for net.UDPConn and
 // net.IPConn which are created as network connections that use the
@@ -140,8 +138,7 @@
 //		}
 //	}
 //
-//
-// More multicasting
+// # More multicasting
 //
 // An application that uses PacketConn may join multiple multicast
 // groups. For example, a UDP listener with port 1024 might join two
@@ -199,8 +196,7 @@
 //		// error handling
 //	}
 //
-//
-// Source-specific multicasting
+// # Source-specific multicasting
 //
 // An application that uses PacketConn on MLDv2 supported platform is
 // able to join source-specific multicast groups.