qtcreator: fix hash

pkgs/development/qtcreator/default.nix

···
 
   src = fetchurl {
     url = "http://download.qt-project.org/official_releases/qtcreator/${baseVersion}/${version}/qt-creator-opensource-src-${version}.tar.gz";
-    sha256 = "0kp7czn9mzncdpq8bx15s3sy13g4xlcdz7y7zy0s9350g4ijs8fx";
+    sha256 = "1asbfphws0aqs92gjgh0iqzr1911kg51r9al44jxpfk88yazjzgm";
   };
 
   # This property can be used in a nix development environment to refer to the Qt package