Update Cargo.toml

Author: lalitb

stress/Cargo.toml

@@ -51,7 +51,7 @@ tracing = { workspace = true, features = ["std"]}
 tracing-subscriber = { workspace = true, features = ["registry", "std"] }
 num-format = "0.4.4"
 sysinfo = { version = "0.32", optional = true }
-libc = "0.2.164"
+libc = "=0.2.164"
 
 [features]
-stats = ["sysinfo"]
+stats = ["sysinfo"]