elnudrop: add pang13 SSH key

hosts/elnudrop/modules/ssh.nix

@@ -1,7 +1,8 @@
 { user, ... }:
 
 let keys = [
-  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEQNlGt62dBMojVCX7EUIia+wfSDfLzV4YCPi8SZ2xrp elnu@elnu.com"
+  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEQNlGt62dBMojVCX7EUIia+wfSDfLzV4YCPi8SZ2xrp elnu@elnu.com" # elnu
+  "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIH62YpVC8GaZXE8CHfyl1yAXXdlUSGNkyE95whYdUpct elnu@elnu.com" # pang13
 ]; in
 {
   services.openssh.enable = true;