chore: remove invalid crate category

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.74%. Comparing base (ef3eb7a) to head (a694b9a).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #27 +/- ## ======================================= Coverage 83.74% 83.74% ======================================= Files 33 33 Lines 2645 2645 ======================================= Hits 2215 2215 Misses 430 430 ```

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[github-actions[bot]]

Bencher

Report	Thu, March 14, 2024 at 23:47:29 UTC
Project	theseus-rs/rsql
Branch	remove-invalid-category
Testbed	localhost

Benchmark	Latency	Latency Results nanoseconds (ns)
version	➖ (view plot)	44272000.000

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