fix: wrap no_mangle attribute with unsafe for compilation

Co-Authored-By: ayush.suresh@dourolabs.xyz <byteSlayer31037@gmail.com>

Author: devin-ai-integration[bot]

target_chains/stylus/contracts/wormhole/src/main.rs

@@ -1,7 +1,7 @@
 #![cfg_attr(not(any(test, feature = "export-abi")), no_main)]
 
 #[cfg(not(any(test, feature = "export-abi")))]
-#[no_mangle]
+#[unsafe(no_mangle)]
 pub extern "C" fn main() {}
 
 #[cfg(feature = "export-abi")]