Add signal feature

Author: Porges

src/agent/onefuzz/Cargo.toml

@@ -59,7 +59,7 @@ windows = { version = "0.48", features = [
 
 [target.'cfg(target_family = "unix")'.dependencies]
 cpp_demangle = "0.4"
-nix = "0.27"
+nix = { version = "0.27", features = ["signal"] }
 
 [target.'cfg(target_os = "linux")'.dependencies]
 pete = "0.10"