fix(gta-core-five): task NMShot behaviour failure exploit

[DaniGP17]

Goal of this PR

Fix a client crash that could be triggered when CTaskNMShot::BehaviourFailure dereferences a null PedIntelligence pointer.

How is this PR achieving the goal

The PR adds a hook that validates the PedIntelligence pointer before it is dereferenced. If the pointer is null, the code path that accesses m_queriableInterface is skipped.

This PR applies to the following area(s)

FiveM

Successfully tested on

Game builds: 2060, 3258
Platforms: Windows

Checklist

• Code compiles and has been tested successfully.
• Code explains itself well and/or is documented.
• My commit message explains what the changes do and what they are for.
• No extra compilation warnings are added by these changes.

Thanks @imLocutor for reporting this exploit