refactor: remove pronom support

[brianheineman]

No description provided.

[github-actions]

Bencher Report

Project	theseus-rs/file-type
Branch	remove-pronom
Testbed	Linux

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Benchmark	Latency	nanoseconds (ns)
file-format::from_bytes	📈 view plot ⚠️ NO THRESHOLD	519.96 ns
file-format::from_bytes (2GiB)	📈 view plot ⚠️ NO THRESHOLD	1,533.80 ns
file_type::from_bytes	📈 view plot ⚠️ NO THRESHOLD	300.81 ns
file_type::from_bytes (2GiB)	📈 view plot ⚠️ NO THRESHOLD	1,128.00 ns
file_type::from_extension	📈 view plot ⚠️ NO THRESHOLD	21.83 ns
file_type::from_media_type	📈 view plot ⚠️ NO THRESHOLD	22.60 ns
file_type::try_from_file	📈 view plot ⚠️ NO THRESHOLD	8,164.40 ns
infer::from_bytes	📈 view plot ⚠️ NO THRESHOLD	58.34 ns
infer::from_bytes (2GiB)	📈 view plot ⚠️ NO THRESHOLD	375.00 ns
magic::from_bytes	📈 view plot ⚠️ NO THRESHOLD	543,750.00 ns
mime_guess::from_extension	📈 view plot ⚠️ NO THRESHOLD	7.85 ns
mime_guess::from_media_type	📈 view plot ⚠️ NO THRESHOLD	98.00 ns

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.08%. Comparing base (59fa255) to head (eb81c05).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #154      +/-   ##
==========================================
- Coverage   98.70%   98.08%   -0.63%     
==========================================
  Files          31       21      -10     
  Lines        2853     2189     -664     
==========================================
- Hits         2816     2147     -669     
- Misses         37       42       +5     

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