dotnet-sdk: rename print-hashes.sh to update.sh

New name better reflects its functionality

pkgs/development/compilers/dotnet/default.nix

@@ -14,7 +14,7 @@ let
     buildNetSdk = attrs: buildDotnet (attrs // { type = "sdk"; });
   };
 
-  ## Files in versions/ are generated automatically by print-hashes.sh ##
+  ## Files in versions/ are generated automatically by update.sh ##
   dotnet_3_1 = import ./versions/3.1.nix (buildAttrs // { icu = icu70; });
   dotnet_5_0 = import ./versions/5.0.nix (buildAttrs // { inherit icu; });
   dotnet_6_0 = import ./versions/6.0.nix (buildAttrs // { inherit icu; });