Fix build warnings and clippy warnings

[dhilipsiva]

Pull Request

Fix Cargo Build Warning and Clippy Warnings

Checklist

• I have tested the changes locally.
• I have reviewed the code changes.

[codecov]

Codecov Report

Attention: Patch coverage is 65.78947% with 52 lines in your changes missing coverage. Please review.

Project coverage is 43.82%. Comparing base (c459b13) to head (324c3ba).

Files	Patch %	Lines
packages/transport_webrtc/src/transport/webrtc.rs	0.00%	14 Missing ⚠️
packages/media_connector/src/agent_service.rs	0.00%	6 Missing ⚠️
packages/media_connector/src/handler_service.rs	0.00%	6 Missing ⚠️
...rnal/local_track/packet_selector/video_h264_sim.rs	78.26%	5 Missing ⚠️
...ernal/local_track/packet_selector/video_vp9_svc.rs	86.48%	5 Missing ⚠️
packages/media_gateway/src/agent_service.rs	0.00%	5 Missing ⚠️
...ernal/local_track/packet_selector/video_vp8_sim.rs	90.69%	4 Missing ⚠️
...s/media_core/src/endpoint/internal/remote_track.rs	0.00%	2 Missing ⚠️
bin/src/http/api_console.rs	0.00%	1 Missing ⚠️
bin/src/server/connector.rs	0.00%	1 Missing ⚠️
... and 3 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #328      +/-   ##
==========================================
- Coverage   43.89%   43.82%   -0.07%     
==========================================
  Files         117      117              
  Lines       12984    12982       -2     
==========================================
- Hits         5699     5690       -9     
- Misses       7285     7292       +7     

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[giangndm]

Thank you for very carefully merge request, I have some comments and questions, let discuss more in details.

[dhilipsiva]

@giangndm Thank you for your response. I have addressed all your questions. Please let me know if you have more questions or feedbacks.

[dhilipsiva]

@giangndm I have updated the code as per your feedbacks. Please let me know if I need to do more changes.

[giangndm]

I will merge it now. Thank you for great contribution.