vendor: Mega update all dependencies

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4080

vendor/github.com/vitrun/qart/qr/png.go

@@ -1,6 +1,6 @@
 // Copyright 2011 The Go Authors.  All rights reserved.
 // Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
+// license that can be found in the LICENSE.bsd file.
 
 package qr
 
@@ -398,3 +398,4 @@ func (d *adigest) WriteNByte(pi byte, n int) {
 }
 
 func (d *adigest) Sum32() uint32 { return afinish(d.a, d.b) }
+