envoy-bin: add katexochen as maintainer

Signed-off-by: Paul Meyer <[e-mail]>

pkgs/by-name/en/envoy-bin/package.nix

···
     description = "Cloud-native edge and service proxy";
     license = lib.licenses.asl20;
     sourceProvenance = [ lib.sourceTypes.binaryNativeCode ];
-    maintainers = with lib.maintainers; [ ];
+    maintainers = with lib.maintainers; [ katexochen ];
     mainProgram = "envoy";
     platforms = [
       "x86_64-linux"