Update rust_highlight/Cargo.toml

rust_highlight/Cargo.toml

@@ -8,4 +8,5 @@ name = "rust_highlight"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.21", features = ["extension-module"] }
+pyo3 = { version = "0.21", features = ["extension-module"] }
+uuid = { version = "1.7", features = ["v4"] }