Bump version 7.0.4

Author: ssrlive

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tproxy-config"
-version = "7.0.3"
+version = "7.0.4"
 edition = "2024"
 description = "Transparent proxy configuration"
 license = "MIT"

src/macos.rs

@@ -321,7 +321,9 @@ pub(crate) fn flush_dns_cache() -> std::io::Result<()> {
     if crate::compare_version(&ver, "10.12") >= 0 {
         // MacOS version 10.12 and later
         // Command: `sudo killall -HUP mDNSResponder`
-        run_command("killall", &["-HUP", "mDNSResponder"])?;
+        if let Err(e) = run_command("killall", &["-HUP", "mDNSResponder"]) {
+            log::debug!("Failed to flush DNS cache: {e}");
+        }
     } else {
         // to make the code simpler, we do nothing for MacOS version 10.11 and earlier
     }