 SpEL cannot invoke varargs `MethodHandle` function with a primitive array

## Overview

After completing #33191, I noticed that the Spring Expression Language (SpEL) also cannot invoke a varargs `MethodHandle` function with a **primitive** array, although that is supported for a varargs `Method` function.

Though, since Spring Framework 6.1.11 has already been released, I'll address this related bug in 6.1.12.

## Related Issues

- #33191

