wlroots: 0.18.0 -> 0.18.1 (#343350)

pkgs/development/libraries/wlroots/default.nix

···
   };
 
   wlroots_0_18 = generic {
-    version = "0.18.0";
-    hash = "sha256-LiRnvu7qCbfSg+ONWVCtWwdzxxFZHfbgmy7zApCIW40=";
+    version = "0.18.1";
+    hash = "sha256-BlI3EUoGEHdO6IBh99o/Aadct2dd7Xjc4PG0Sv+flqI=";
     extraNativeBuildInputs = [
       hwdata
     ];