chore: enable Rust 2024 edition lints

[gruebel]

Changes

• similar to chore: enable Rust 2024 edition lints opentelemetry-rust#2728

Merge requirement checklist

• CONTRIBUTING guidelines followed
• Unit tests added/updated (if applicable)
• Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

Attention: Patch coverage is 96.72131% with 2 lines in your changes missing coverage. Please review.

Project coverage is 53.8%. Comparing base (4142e94) to head (e042788).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...elemetry-user-events-metrics/src/tracepoint/mod.rs	0.0%	1 Missing ⚠️
stress/src/throughput.rs	0.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main    #200     +/-   ##
=======================================
- Coverage   53.8%   53.8%   -0.1%     
=======================================
  Files         45      45             
  Lines       6474    6473      -1     
=======================================
- Hits        3485    3484      -1     
  Misses      2989    2989             

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