Fix docstring inconsistency in CaseParticipant.set_name_if_empty

[Copilot]

Docstring in CaseParticipant.set_name_if_empty referenced actor while the implementation uses attributed_to.

Changes

• vultron/as_vocab/objects/case_participant.py: Updated set_name_if_empty docstring to use attributed_to consistently with the implementation

# Before
"""If name is empty, set it to the actor's name if available, otherwise set it to the string representation of attributed_to."""

# After
"""If name is empty, set it to the attributed_to's name if available, otherwise set it to the string representation of attributed_to."""

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[ahouseholder]

nevermind, will handle in the original PR