feat: replace redirect_stderr with args.verbose

[gaius-qi]

Description

This pull request includes several changes to the dragonfly-client project, focusing on improving logging and updating dependencies. The most important changes include updating the lru crate version, adding a new logging statement, and modifying the tracing initialization logic.

Dependency Update:

• Updated the lru crate version to 0.12.5 in Cargo.toml.

Logging Enhancements:

• Added a new logging statement using tracing::info in dragonfly-client/src/proxy/cache.rs.

Tracing Initialization:

• Removed the redirect_stderr parameter from the init_tracing function in dragonfly-client/src/tracing/mod.rs.
• Changed the logic to redirect stderr to a file only if verbose is not enabled in dragonfly-client/src/tracing/mod.rs.

Related Issue

Motivation and Context

Screenshots (if appropriate)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 33.86%. Comparing base (4f97de3) to head (2764531).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
dragonfly-client/src/tracing/mod.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #905      +/-   ##
==========================================
+ Coverage   33.83%   33.86%   +0.02%     
==========================================
  Files          60       60              
  Lines        9040     9034       -6     
==========================================
  Hits         3059     3059              
+ Misses       5981     5975       -6     

Files with missing lines	Coverage Δ
dragonfly-client-init/src/bin/main.rs	0.00% <ø> (ø)
dragonfly-client/src/bin/dfcache/main.rs	0.00% <ø> (ø)
dragonfly-client/src/bin/dfdaemon/main.rs	0.00% <ø> (ø)
dragonfly-client/src/bin/dfget/main.rs	26.45% <ø> (+0.03%)	⬆️
dragonfly-client/src/bin/dfstore/main.rs	0.00% <ø> (ø)
dragonfly-client/src/tracing/mod.rs	0.00% <0.00%> (ø)

[chlins]

lgtm