fix typo in compiler validation filename (#33345)

## Summary

While investigating the root cause of #33208, I noticed a clear typo for
one of the validation files.

## How did you test this change?

Inside `/react/compiler/packages/babel-plugin-react-compiler` I ran the
test script successfully:

<img width="415" alt="Screenshot at May 22 16-43-06"
src="https://github.com/user-attachments/assets/3fe8c5e1-37ce-4a31-b35e-7e323e57cd9d"
/>