Merge pull request #262309 from mirkolenz/maintainer-mirkolenz

maintainers: add mirkolenz

maintainers/maintainer-list.nix

···
     githubId = 149558;
     name = "Merlin Gaillard";
   };
+  mirkolenz = {
+    name = "Mirko Lenz";
+    email = "[e-mail]";
+    matrix = "@mlenz:matrix.org";
+    github = "mirkolenz";
+    githubId = 5160954;
+  };
   mirrexagon = {
     email = "[e-mail]";
     github = "mirrexagon";