Author name resolution unit tests should be case sensitive

### Problem

Related: #9390, #9003, internetarchive/infogami#221

#### Evidence / Screenshot
https://github.com/internetarchive/infogami/pull/221 will cause Infogami's `~` behavior go back to doing a `LIKE` operation, and this will cause Infogami's `~` behavior to go out of sync with the `mock_infobase` behavior added in #9003, which made `~` case insensitive. `mock_infobase` and the unit tests will need to be updated to be case _sensitive_.

Once/if #9390 is implemented, these test will need to be made case insensitive again, but until that happens, they should be case sensitive.

See #9003 for the exact files to update to make the name resolution tests case sensitive once more.

#### Relevant URL(s)

### Reproducing the bug

_No response_

### Context

_No response_

### Notes from this Issue's Lead

#### Proposal & constraints

#### Related files

#### Stakeholders

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