fix: Add required feature to socket2

Signed-off-by: Scott Fleener <scott@buoyant.io>

Author: sfleen

linkerd/proxy/transport/Cargo.toml

@@ -14,7 +14,7 @@ futures = { version = "0.3", default-features = false }
 linkerd-error = { path = "../../error" }
 linkerd-io = { path = "../../io" }
 linkerd-stack = { path = "../../stack" }
-socket2 = "0.5"
+socket2 = { version = "0.5", features = ["all"] }
 thiserror = "2"
 tokio = { version = "1", features = ["macros", "net"] }
 tokio-stream = { version = "0.1", features = ["net"] }