fixup! Change maxdgram sysctl variable to host interface mtu

Author: Serock3

test/test-manager/src/tests/tunnel_state.rs

@@ -111,7 +111,7 @@ async fn test_mtu_detection(
     #[cfg(target_os = "linux")]
     let _nft_guard = setup_nftables_drop_pings_rule(MAX_PACKET_SIZE).await;
     #[cfg(target_os = "macos")]
-    let _mtu_guard = set_bridge_interface_mtu(MAX_PACKET_SIZE).await?;
+    let _mtu_guard = set_bridge_interface_mtu(MAX_PACKET_SIZE)?;
 
     // Test that the firewall rule works
     log::info!("Sending large ping outside tunnel");