audacity: patch wxGTK to work with 3.2.4

pkgs/top-level/all-packages.nix

···
 
   audacity = callPackage ../applications/audio/audacity {
     inherit (darwin.apple_sdk.frameworks) AppKit CoreAudioKit;
+    wxGTK32 = wxGTK32.overrideAttrs {
+      patches = [
+       (fetchpatch { # required to run audacity 3.3.3 on wxGTK 3.2.4, see PR #266945
+         url = "https://github.com/wxWidgets/wxWidgets/commit/425d9455e8307c1267a79d47d77e3dafeb4d86de.patch";
+         excludes = [ "docs/changes.txt" ];
+         revert = true;
+         hash = "sha256-6LOYLDLtVCHxNdHAWv3zhlCsljIpi//RJb9XVLGD5hM=";
+       })
+     ];
+    };
   };
 
   audio-recorder = callPackage ../applications/audio/audio-recorder { };