Bump pennylane-qiskit from 0.39.1 to 0.40.0 (#64)

Bumps [pennylane-qiskit](https://github.com/XanaduAI/pennylane-qiskit) from 0.39.1 to 0.40.0.
- [Release notes](https://github.com/XanaduAI/pennylane-qiskit/releases)
- [Changelog](https://github.com/PennyLaneAI/pennylane-qiskit/blob/master/CHANGELOG.md)
- [Commits](PennyLaneAI/pennylane-qiskit@v0.39.1...v0.40.0)

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

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

pyproject.toml

@@ -18,7 +18,7 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.9"
-pennylane-qiskit = "^0.39.1"
+pennylane-qiskit = "^0.40.0"
 qiskit-quantuminspire = "^0.3.0"
 
 [tool.poetry.group.dev.dependencies]