feat(hecuba): set up tailscale for colmena deployments

hosts/hecuba/meta.nix

@@ -2,7 +2,7 @@
   system = "x86_64-linux";
   deployment = {
     tags = [ "cloud" ];
-    targetHost = "server.hektormisplon.xyz";
+    targetHost = "hecuba";
     targetUser = "username";
   };
   role = "server";