maintainers: add mikroskeem

maintainers/maintainer-list.nix

@@ -6615,6 +6615,16 @@
     githubId = 1387206;
     name = "Mike Sperber";
   };
+  mikroskeem = {
+    email = "mikroskeem@mikroskeem.eu";
+    github = "mikroskeem";
+    githubId = 3490861;
+    name = "Mark Vainomaa";
+    keys = [{
+      longkeyid = "rsa4096/0xDA015B05B5A11B22";
+      fingerprint = "DB43 2895 CF68 F0CE D4B7  EF60 DA01 5B05 B5A1 1B22";
+    }];
+  };
   milesbreslin = {
     email = "milesbreslin@gmail.com";
     github = "milesbreslin";