[core] [C++] Fix Automaton mobSkill lookup

[Skold177]

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• I have tested my code and the things my code has changed since the last commit in the PR and will test after any later commits.

What does this pull request do?

In the recent PR to update families all automaton frames were changed to family 382, causing the lookup for automaton skills to break. This PR changes the lookup to use MobSkillList instead of Family.

Steps to test these changes

Summon any automaton frame -> see wrong WS used (In this case its currently mapped to Garuda)
Rebuild
Summon any frame, see correct skills used