pymupdf: remove teto from maintainers (#403982)

pkgs/development/python-modules/pymupdf/default.nix

···
     homepage = "https://github.com/pymupdf/PyMuPDF";
     changelog = "https://github.com/pymupdf/PyMuPDF/releases/tag/${src.tag}";
     license = lib.licenses.agpl3Only;
-    maintainers = with lib.maintainers; [ teto ];
+    maintainers = [ ];
     platforms = lib.platforms.unix;
   };
 }