maintainers: add `carpinchomug`

maintainers/maintainer-list.nix

···
     githubId = 82591;
     name = "Carl Sverre";
   };
+  carpinchomug = {
+    email = "[e-mail]";
+    github = "carpinchomug";
+    githubId = 101536256;
+    name = "Akiyoshi Suda";
+  };
   cartr = {
     email = "[e-mail]";
     github = "cartr";