Rename z77z into maggesi

Make the "handle" of the maintainer match the name of the github account.
Also update the email address.

pkgs/development/compilers/polyml/5.6.nix

@@ -28,7 +28,7 @@ stdenv.mkDerivation {
     license = stdenv.lib.licenses.lgpl21;
     platforms = with stdenv.lib.platforms; linux;
     maintainers = [ #Add your name here!
-      stdenv.lib.maintainers.z77z
+      stdenv.lib.maintainers.maggesi
     ];
   };
 }

pkgs/development/compilers/polyml/5.7.nix

@@ -33,6 +33,6 @@ stdenv.mkDerivation rec {
     homepage = https://www.polyml.org/;
     license = licenses.lgpl21;
     platforms = with platforms; (linux ++ darwin);
-    maintainers = with maintainers; [ z77z yurrriq ];
+    maintainers = with maintainers; [ maggesi yurrriq ];
   };
 }

pkgs/development/compilers/polyml/default.nix

@@ -33,6 +33,6 @@ stdenv.mkDerivation rec {
     homepage = https://www.polyml.org/;
     license = licenses.lgpl21;
     platforms = with platforms; (linux ++ darwin);
-    maintainers = with maintainers; [ z77z yurrriq ];
+    maintainers = with maintainers; [ maggesi yurrriq ];
   };
 }