TC-WASHERCTRL-2.1: Automate

[cecille]

• check of the SpinSpeeds list values should be straightforward in python
• test should be updated to check the range of spin speeds - ie check each valid index, then check outside of the index range

current test: https://github.com/project-chip/connectedhomeip/blob/master/src/app/tests/suites/certification/Test_TC_WASHERCTRL_2_1.yaml

test plan: https://github.com/CHIP-Specifications/chip-test-plans/blob/master/src/cluster/LaundryWasherControls.adoc

[andy31415]

Assigned to myself as a "worked on" placeholder pending getting seats for new developers in the project

[khodya]

project-chip/connectedhomeip#36720