[FIX] for potential rustls dependency vulnerability (#71)

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "chat-gpt-lib-rs"
-version = "0.5.0"
+version = "0.5.1"
 edition = "2021"
 description = "A Rust library for interacting with OpenAI's ChatGPT API, providing a simple interface to make API requests and handle responses."
 license = "Apache-2.0"
@@ -19,7 +19,7 @@ path = "examples/cli-chat-example.rs"
 env_logger = "0.11"
 log = "0.4"
 reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
-rustls = "0.23"
+rustls = ">=0.23.5, <0.24.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 tokio = { version = "1.37", features = ["full"] }