otio: fix hash

pkgs/by-name/ot/otio/package.nix

···
     owner = "AcademySoftwareFoundation";
     repo = "OpenTimelineIO";
     tag = "v${finalAttrs.version}";
-    sha256 = "sha256-53KXjbhHxuEtu6iRGWrirvFamuZ/WbOTcKCfs1iqKmM=";
+    hash = "sha256-53KXjbhHxuEtu6iRGWrirvFamuZ/WbOTcKCfs1iqKmM=";
   };
 
   nativeBuildInputs = [