update pyo3 version and Rust edition

Cargo.toml

@@ -2,7 +2,7 @@
 name = "entropython"
 version = "1.1.0"
 authors = ["Enkelmann <[email protected]>"]
-edition = "2018"
+edition = "2021"
 description = "A Python module for efficient calculation of Shannon byte entropy based on Rust."
 readme = "README.md"
 homepage = "https://github.com/fkie-cad/entropython"
@@ -17,4 +17,4 @@ path = "rust/lib.rs"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = { version = "0.17.1", features = ["extension-module"] }
+pyo3 = { version = "0.22.2", features = ["extension-module"] }

rust/lib.rs

@@ -37,7 +37,7 @@ fn metric_entropy(bytes: &[u8]) -> f64 {
 /// This module implements functions to compute the Shannon byte entropy of a byte array.
 /// The computation itself is implemented in Rust for faster runtime.
 #[pymodule]
-fn libentropython(_py: Python, m: &PyModule) -> PyResult<()> {
+fn libentropython(m: &Bound<'_, PyModule>) -> PyResult<()> {
     m.add_function(wrap_pyfunction!(shannon_entropy, m)?)?;
     m.add_function(wrap_pyfunction!(metric_entropy, m)?)?;
     Ok(())