Update pyo3 requirement from 0.21 to 0.22

Updates the requirements on [pyo3](https://github.com/pyo3/pyo3) to permit the latest version.
- [Release notes](https://github.com/pyo3/pyo3/releases)
- [Changelog](https://github.com/PyO3/pyo3/blob/main/CHANGELOG.md)
- [Commits](PyO3/pyo3@v0.21.0...v0.21.2)

---
updated-dependencies:
- dependency-name: pyo3
  dependency-type: direct:production
...

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

Cargo.toml

@@ -15,6 +15,6 @@ python = ["dep:numpy", "dep:pyo3"]
 
 [dependencies]
 numpy = {version = "0.21", optional = true}
-pyo3 = {version = "0.21", features = ["extension-module"], optional = true}
+pyo3 = {version = "0.22", features = ["extension-module"], optional = true}
 rand = "0.8.5"
 rand_distr = "0.4.3"