open-stage-control: fix src hash

It looks like upstream retagged v1.23.0 since the bump PR was merged.
The hash is stable now so I guess I'll wait a day or two next time
before bumping open-stage-control...

pkgs/applications/audio/open-stage-control/default.nix

@@ -8,7 +8,7 @@ buildNpmPackage rec {
     owner = "jean-emmanuel";
     repo = "open-stage-control";
     rev = "v${version}";
-    hash = "sha256-P3aTGt/T59JE2oy8uRhD8h2NXX/ZXno6qY0frpcir7A=";
+    hash = "sha256-5QMBJw6H9TmyoSMkG5rniq1BdVYuEtQsQF1GGBkxqMI=";
   };
 
   # Remove some Electron stuff from package.json