More clippy fixes

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 23.33333% with 23 lines in your changes missing coverage. Please review.

Project coverage is 41.83%. Comparing base (13b267e) to head (d1af18a).

Files	Patch %	Lines
packages/media_record/src/storage/mod.rs	0.00%	10 Missing :warning:
packages/media_record/src/media.rs	0.00%	6 Missing :warning:
bin/src/server/media.rs	0.00%	2 Missing :warning:
packages/media_record/src/media/vpx_writer.rs	0.00%	2 Missing :warning:
...ckages/media_record/src/raw_record/chunk_writer.rs	0.00%	2 Missing :warning:
packages/media_core/src/endpoint/internal.rs	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #349 +/- ## ========================================== - Coverage 41.84% 41.83% -0.01% ========================================== Files 134 134 Lines 14046 14048 +2 ========================================== Hits 5877 5877 - Misses 8169 8171 +2 ```

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[giangndm]

@dhilipsiva for avoiding clippy warns, can you add a github action for running it every pull request?