create patch for workflow

rust/remove_os_check.patch

@@ -0,0 +1,19 @@
+diff --git a/crates/iptables/src/lib.rs b/crates/iptables/src/lib.rs
+index 4a4d6dc..e7d15fc 100644
+--- a/src/lib.rs
++++ b/src/lib.rs
+@@ -92,14 +92,6 @@ pub struct IPTables {
+     pub is_numeric: bool,
+ }
+ 
+-/// Returns `None` because iptables only works on linux
+-#[cfg(not(target_os = "linux"))]
+-pub fn new(is_ipv6: bool) -> Result<IPTables, Box<dyn Error>> {
+-    Err(error_from_str("iptables only works on Linux"))
+-}
+-
+-/// Creates a new `IPTables` Result with the command of 'iptables' if `is_ipv6` is `false`, otherwise the command is 'ip6tables'.
+-#[cfg(target_os = "linux")]
+ pub fn new(is_ipv6: bool) -> Result<IPTables, Box<dyn Error>> {
+     let cmd = if is_ipv6 { "ip6tables" } else { "iptables" };
+