Bump pyo3 from 0.19.2 to 0.20.1

Bumps [pyo3](https://github.com/pyo3/pyo3) from 0.19.2 to 0.20.1.
- [Release notes](https://github.com/pyo3/pyo3/releases)
- [Changelog](https://github.com/PyO3/pyo3/blob/main/CHANGELOG.md)
- [Commits](PyO3/pyo3@v0.19.2...v0.20.1)

---
updated-dependencies:
- dependency-name: pyo3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Cargo.toml

@@ -30,7 +30,7 @@ features = ["chrono"]
 libc = "0.2.70"
 pyo3-built = "0.4.6"
 [dependencies.pyo3]
-version = "0.19.2"
+version = "0.20.1"
 [dependencies.fastobo]
 version = "0.15.1"
 features = ["threading", "smartstring"]