containerlab: remove aaronjheng from maintainers

pkgs/by-name/co/containerlab/package.nix

···
     changelog = "https://github.com/srl-labs/containerlab/releases/tag/v${finalAttrs.version}";
     license = lib.licenses.bsd3;
     platforms = lib.platforms.linux;
-    maintainers = with lib.maintainers; [ aaronjheng ];
+    maintainers = with lib.maintainers; [ ];
     mainProgram = "containerlab";
   };
 })