shairport-sync: revision bump (libconfig 1.8.1)

Signed-off-by: botantony <[email protected]>

Author: botantony

Formula/s/shairport-sync.rb

@@ -4,6 +4,7 @@ class ShairportSync < Formula
   url "https://github.com/mikebrady/shairport-sync/archive/refs/tags/4.3.7.tar.gz"
   sha256 "a1242d100b61fe1fffbbf706e919ed51d6a341c9fb8293fb42046e32ae2b3338"
   license "MIT"
+  revision 1
   head "https://github.com/mikebrady/shairport-sync.git", branch: "master"
 
   livecheck do