Rewrite PublicKeyVerifyWrapperTest.

- Explicitly test the different signature formats with a raw signer.
- Split into smaller tests, and use parameterized tests.
- Don't use factories, because they are deprecated.
- Use the API of the wrapper directly, this makes the test a bit easier to understand.

PiperOrigin-RevId: 459688977
Change-Id: I397c5d9a0987c4055cd525ee3f322900476f6df0
2 files changed