Bump pyo3 from 0.14.2 to 0.15.1

Bumps [pyo3](https://github.com/pyo3/pyo3) from 0.14.2 to 0.15.1.
- [Release notes](https://github.com/pyo3/pyo3/releases)
- [Changelog](https://github.com/PyO3/pyo3/blob/main/CHANGELOG.md)
- [Commits](https://github.com/pyo3/pyo3/commits)

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

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

Cargo.lock

@@ -1857,9 +1857,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3"
-version = "0.14.2"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af205762ba65eec9f27a2fa1a57a40644e8e3368784b8c8b2f2de48f6e8ddd96"
+checksum = "7cf01dbf1c05af0a14c7779ed6f3aa9deac9c3419606ac9de537a2d649005720"
 dependencies = [
  "cfg-if 1.0.0",
  "indoc",
@@ -1873,18 +1873,18 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.14.2"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "755944027ce803c7238e59c5a18e59c1d0a4553db50b23e9ba209a568353028d"
+checksum = "dbf9e4d128bfbddc898ad3409900080d8d5095c379632fbbfbb9c8cfb1fb852b"
 dependencies = [
  "once_cell",
 ]
 
 [[package]]
 name = "pyo3-macros"
-version = "0.14.2"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd31b36bccfd902c78804bd96c28ea93eac6fa0ca311f9d21ef2230b6665b29a"
+checksum = "67701eb32b1f9a9722b4bc54b548ff9d7ebfded011c12daece7b9063be1fd755"
 dependencies = [
  "pyo3-macros-backend",
  "quote",
@@ -1893,9 +1893,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.14.2"
+version = "0.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c21c59ba36db9c823e931c662766b0dd01a030b1d96585b67d8857a96a56b972"
+checksum = "f44f09e825ee49a105f2c7b23ebee50886a9aee0746f4dd5a704138a64b0218a"
 dependencies = [
  "proc-macro2",
  "pyo3-build-config",

python/Cargo.toml

@@ -17,5 +17,5 @@ doctest = false
 
 [dependencies]
 oxigraph = {version = "0.2", path="../lib", features = ["sled", "http_client"]}
-pyo3 = {version = "0.14", features = ["extension-module", "abi3-py36"]}
+pyo3 = {version = "0.15", features = ["extension-module", "abi3-py36"]}
 native-tls = {version = "0.2", features = ["vendored"]}