Describe the bug
Calling EMFAnimationApi.registerSingletonAnimationVariable with a FloatSupplier crashes the game

To Reproduce
Steps to reproduce the behavior:

1. Register a singleton float variable by calling the registerSingletonAnimationVariable function with a FloatSupplier
2. Launch the game

Expected behavior
It shouldn't crash (and also should register the variable)

Crashlog
If applicable, add your crashlog or latest.log to help explain your problem.

• Minecraft Version: [1.21.4]
• EMF version [2.4.1]
• Does the issue persist with only EMF installed? Yes
• latest.log

Additional context
Likely cause of the issue:
Line 86 of EMFAnimationAPI
VariableRegistry.getInstance().registerSimpleFloatVariable(variableName, variableExplanationTranslationKeyOrText, (MathValue.ResultSupplier) variableValueSupplier);
The variableValueSupplier, which does not inherit from MathValue.ResultSupplier, is forcibly cast to it, producing a ClassCastException