[Sub-Task] Create base wildcard subscription to cross-check with attribute reads during testing

[j-ororke]

Summary Title:

This task is created to track creating base wildcard subscription during start of tests in test framework to cache attribute value changes during testing so that we can mimic real DUT behavior when doing attribute reads as mentioned by Cecille in task #756. This will allow us to cross-check the attribute values in subscription reports against the read values gathered using read_single_attribute_check_success() calls done in matter_testing.

[j-ororke]

Current PR for this sub-task is 43274

[j-ororke]

As mentioned in the comments for task #756 regarding PR #43274:

• Updated TC_SC_3_6 python3 test module and TestReadSubscribeAceExistenceErrors.py to call super().setup_class() at the start of overridden setup_class method. The original implementation silently skipped the base class initialisation in MatterBaseTest, leaving subscription_controller that we are implementing uninitialised, which caused an error at runtime. Both tests now work correctly with the background wildcard subscription being introduced.

• Additionally added a new script-arg --no-wildcard-subscription in order to gate the background subscription and new controller initialization before tests start to exclude tests similar to ACL_2_4 and ACL_2_6 that experience issues when new ACL entries are added before tests start.