gromacs: use cudatoolkit_11

Since the 2022 version at least cudatoolkit-11.0 is required

pkgs/top-level/all-packages.nix

@@ -32279,6 +32279,7 @@ with pkgs;
     singlePrec = true;
     enableMpi = true;
     enableCuda = true;
+    cudatoolkit = cudatoolkit_11;
     fftw = fftwSinglePrec;
   });