syslog-ng: revision bump (protobuf 33.2)

Author: botantony

Formula/s/syslog-ng.rb

@@ -6,7 +6,7 @@ class SyslogNg < Formula
   url "https://github.com/syslog-ng/syslog-ng/releases/download/syslog-ng-4.10.1/syslog-ng-4.10.1.tar.gz"
   sha256 "dea90cf1dc4b8674ff191e0032f9dabc24b291abfd7f110fd092ae5f21cde5d7"
   license all_of: ["LGPL-2.1-or-later", "GPL-2.0-or-later"]
-  revision 3
+  revision 4
   head "https://github.com/syslog-ng/syslog-ng.git", branch: "develop"
 
   livecheck do