wpa_supplicant module: after network-interfaces.target

fixes #13136

nixos/modules/services/networking/wpa_supplicant.nix

···
       in {
         description = "WPA Supplicant";
 
+        after = [ "network-interfaces.target" ];
         wantedBy = [ "network.target" ];
 
         path = [ pkgs.wpa_supplicant ];