Cirq: Notebook test slow tests

Probably worth trying to speed up that notebook test as it is long poll in the CI. Maybe there is a pattern to add something that can “fix” the notebooks to smaller parameters to speed them up?

63.27s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/cirq/contrib/quimb/Cirq-to-Tensor-Networks.ipynb]
42.70s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/quantum_walks.ipynb]
33.26s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/educators/qaoa_ising.ipynb]
28.50s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/hidden_linear_function.ipynb]
27.31s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/educators/chemistry.ipynb]
24.82s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/qaoa.ipynb]
21.05s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/variational_algorithm.ipynb]
14.91s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/cirq/contrib/quimb/Contract-a-Grid-Circuit.ipynb]
11.20s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/rabi_oscillations.ipynb]
10.77s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/interop.ipynb]
9.48s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/educators/intro.ipynb]
9.44s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/educators/textbook_algorithms.ipynb]
7.76s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/circuits.ipynb]
7.73s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/educators/ion_device.ipynb]
7.45s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/simulation.ipynb]
7.29s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/basics.ipynb]
6.34s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/qubits.ipynb]
6.30s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/transform.ipynb]
6.26s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/educators/neutral_atom.ipynb]
6.21s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/qudits.ipynb]
6.19s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/protocols.ipynb]
6.13s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/custom_gates.ipynb]
6.04s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/noise.ipynb]
6.03s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/tutorials/shor.ipynb]
5.93s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/cirq/contrib/svg/example.ipynb]
5.84s call     dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/docs/gates.ipynb]
0.11s setup    dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/cirq/contrib/quimb/Contract-a-Grid-Circuit.ipynb]
0.06s setup    dev_tools/notebook_test.py::test_notebooks[/Users/bacon/code/github/Cirq/cirq/contrib/svg/example.ipynb]