fix: Clippy warnings for Rust 1.88

[scouten-adobe]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 47.61905% with 44 lines in your changes missing coverage. Please review.

Project coverage is 79.57%. Comparing base (7618532) to head (3140606).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
cli/src/main.rs	6.25%	15 Missing ⚠️
make_test_images/src/compare_manifests.rs	0.00%	13 Missing ⚠️
sdk/src/reader.rs	20.00%	4 Missing ⚠️
cli/src/tree.rs	33.33%	2 Missing ⚠️
export_schema/src/main.rs	0.00%	2 Missing ⚠️
sdk/src/store.rs	33.33%	2 Missing ⚠️
c2pa_c_ffi/src/c_api.rs	66.66%	1 Missing ⚠️
sdk/src/asset_handlers/gif_io.rs	0.00%	1 Missing ⚠️
sdk/src/builder.rs	85.71%	1 Missing ⚠️
sdk/src/crypto/ocsp/mod.rs	0.00%	1 Missing ⚠️
... and 2 more

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1204   +/-   ##
=======================================
  Coverage   79.56%   79.57%           
=======================================
  Files         147      147           
  Lines       40548    40541    -7     
=======================================
- Hits        32262    32259    -3     
+ Misses       8286     8282    -4     

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