Update Rust crate libc to 0.2.122

Author: renovate-bot

Cargo.toml

@@ -28,7 +28,7 @@ console_log = "0.2.0"
 heck = "0.4.0"
 http = "0.2.6"
 lazy_static = "1.4.0"
-libc = "0.2.121"
+libc = "0.2.122"
 log = "0.4.16"
 percent-encoding = "2.1.0"
 rand = "0.8.5"