Suppress "Return value of the method is never used" warning on @Accessor and @Invoker methods

[O7410]

Minecraft Development for IntelliJ plugin version

2024.1-1.8.0

Description of the feature request

There are methods that do something and return a value from a calculation in the method, so there is a reason to call the invoker method while not using the return value
but applying the quick fix creates an error in the invoker because the return type doesn't match
so suppress the warning
almost the same for field getter accessors, except fields don't have side effects when accessing, so see #2349