feat(tests): Add CLI options for hardware fault injection tests

[nv-oviya]

Overview:

Adds pytest CLI options and fixture for configuring hardware fault injection tests.

Details:

• Added --enable-hw-faults flag to enable HW fault tests
• Added --hw-fault-xid option for XID type selection (default: 79)
• Added --hw-fault-target-node option for node targeting
• Added hw_fault_config fixture that returns config dict or None

Where should the reviewer start?

• pytest_addoption() function for CLI options
• hw_fault_config fixture at end of file

Related Issues: (use one of the action keywords Closes / Fixes / Resolves / Relates to)

• Relates to: Hardware fault tolerance test infrastructure
• Merge after:
  • feat(tests): register hw_faults pytest marker #4826
  • fix: suppress kubernetes client urllib3 deprecation warnings #4833
  • feat(tests): add HWFaultManager for hardware fault injection orchestration #4830
  • feat(tests): Add hardware fault injection support to ManagedDeployment #4831

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