Remove timeout wrapper from nft command

Run sudo nft directly without timeout wrapper to preserve capabilities.
The timeout -> sudo chain was preventing nft from accessing netlink
with proper permissions.

- Change from 'timeout 3 sudo nft' to 'sudo nft'
- Allows CAP_NET_ADMIN to pass through correctly
- Update version to v0.1.256

agent/src/collectors/systemd.rs

@@ -914,8 +914,8 @@ impl SystemdCollector {
     /// Get nftables open ports grouped by protocol
     /// Returns: (tcp_ports_string, udp_ports_string)
     fn get_nftables_open_ports(&self) -> (String, String) {
-        let output = Command::new("timeout")
-            .args(&["3", "sudo", "/run/current-system/sw/bin/nft", "list", "ruleset"])
+        let output = Command::new("sudo")
+            .args(&["/run/current-system/sw/bin/nft", "list", "ruleset"])
             .output();
 
         let output = match output {