added master version of davinci resolve

flake.nix

@@ -63,7 +63,7 @@
                 }
               )
               ( # Overrides davinci-resolve with the unstable version because of https://github.com/NixOS/nixpkgs/pull/246074
-                final: prev: {davinci-resolve = final.unstable.davinci-resolve;}
+                final: prev: {davinci-resolve = final.master.davinci-resolve;}
               )
             ];
           }