Update pyo3-build-config requirement from 0.18 to 0.21 (#2205)

Updates the requirements on [pyo3-build-config](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@v0.18.0...v0.21.2)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Dominik Maier <[email protected]>

Author: dependabot[bot]

libafl_qemu/Cargo.toml

@@ -96,7 +96,7 @@ document-features = { version = "0.2", optional = true }
 
 [build-dependencies]
 libafl_qemu_build = { path = "./libafl_qemu_build", version = "0.12.0" }
-pyo3-build-config = { version = "0.18", optional = true }
+pyo3-build-config = { version = "0.21", optional = true }
 rustversion = "1.0"
 bindgen = "0.69"
 

libafl_sugar/Cargo.toml

@@ -45,7 +45,7 @@ ppc = ["libafl_qemu/ppc"]
 hexagon = ["libafl_qemu/hexagon"]
 
 [build-dependencies]
-pyo3-build-config = { version = "0.18", optional = true }
+pyo3-build-config = { version = "0.21", optional = true }
 
 [dependencies]
 libafl = { path = "../libafl", version = "0.12.0", features = ["adaptive_serialization"] }