update pyproject.toml to use latest PL ecosystem dependencies

[andrijapau]

With the latest ecosystem released to PyPI, it's time to update dev to use these dependencies. This PR also reverts the change to install pennylane from master instead of the v0.42.0-rc0 branch.

This PR was prepared by first updating PL ecosystem to the latest release, then poetry lock. Then the remaining changes came from making the dependency tree happy.

⚠️ Important change: qrisp and neural-tangents were taken out of the pyproject.toml dependencies as they create some weird tensorflow error,

% poetry lock
Updating dependencies
Resolving dependencies... (6.3s)

Package 'tensorflow-macos' is listed as a dependency of itself.

This is fine because the only demos that depend on them are non-executable.

[github-actions]

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Deployment Info:

• Pull Request ID: 1441
• Deployment SHA: 5772c504e2f7d16e736c6b72a12334382df87037
  (The Deployment SHA refers to the latest commit hash the docs were built from)

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[DSGuala]

Looks good to me!