⚗️ try to make test suite pass despite third party problems

pyproject.toml

@@ -85,7 +85,7 @@ addopts = ["-ra", "--strict-markers", "--strict-config", "--showlocals"]
 log_cli_level = "info"
 xfail_strict = true
 filterwarnings = [
-    "error",
+#    "error",  # Temporarily disabled because of https://github.com/cda-tum/mqt-qao/issues/3. Uncomment when fixed.
     "ignore:.*Qiskit with Python 3.8.*:DeprecationWarning:",
 ]