Add maintainer

maintainers/maintainer-list.nix

···
     githubId = 1298344;
     name = "Daniel Fullmer";
   };
+  dansbandit = {
+    github = "dansbandit";
+    githubId = 4530687;
+    name = "dansbandit";
+  };
   danth = {
     name = "Daniel Thwaites";
     email = "[e-mail]";