Bump parking_lot from 0.12.3 to 0.12.4

---
updated-dependencies:
- dependency-name: parking_lot
  dependency-version: 0.12.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -37,7 +37,7 @@ ipext = "0.1.0"
 libsodium-sys-stable = "1.22.3"
 log = { version = "0.4.27", features = ["std", "release_max_level_debug"] }
 mimalloc = { version = "0.1.46", default-features = false }
-parking_lot = "0.12.3"
+parking_lot = "0.12.4"
 rand = "0.9.1"
 rlimit = "0.10.2"
 rustc-hash = "2.1.1"