Bump parking_lot crate from 0.12.1 to 0.12.3 (#5253)

Summary: Pull Request resolved: facebook/relay#5253

Differential Revision: D100982156

Author: robertoaloi

safeptrace/Cargo.toml

@@ -14,7 +14,7 @@ futures = { version = "0.3.31", features = ["async-await", "compat"] }
 lazy_static = "1.5"
 libc = "0.2.183"
 nix = { version = "0.30.1", features = ["dir", "event", "hostname", "inotify", "ioctl", "mman", "mount", "net", "poll", "ptrace", "reboot", "resource", "sched", "signal", "term", "time", "user", "zerocopy"] }
-parking_lot = { version = "0.12.1", features = ["send_guard"] }
+parking_lot = { version = "0.12.3", features = ["send_guard"] }
 reverie-memory = { version = "0.1.0", path = "../reverie-memory", optional = true }
 reverie-process = { version = "0.1.0", path = "../reverie-process" }
 syscalls = { version = "0.6.18", features = ["serde"] }