🚨 ignore new pandas deprecation warning (#536)

## Description

This PR ignores a new DeprecationWarning issued by pandas. This should
let the CI pipeline pass again.

## Checklist:

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- [x] The pull request only contains commits that are related to it.
- [x] I have added appropriate tests and documentation.
- [x] I have made sure that all CI jobs on GitHub pass.
- [x] The pull request introduces no new warnings and follows the
project's style guidelines.

pyproject.toml

@@ -134,6 +134,7 @@ filterwarnings = [
     'ignore:.*qiskit.__qiskit_version__.*:DeprecationWarning:qiskit:',
     'ignore:.*qiskit.utils.algorithm_globals.QiskitAlgorithmGlobals*:DeprecationWarning:qiskit',
     'ignore:.*Building a flow controller with keyword arguments is going to be deprecated*:PendingDeprecationWarning:qiskit',
+    'ignore:\s.*Pyarrow.*:DeprecationWarning:',
 ]
 log_cli_level = "info"
 testpaths = ["test/python"]