Adding code coverage processes on CI.yml workflow

[mgama-deepgram]

Proposed changes

• Adding code coverage processes on the CI.yml workflow on the test job
• The test job in the CI.yml workflow will now post the calculated code coverage as a PR comment

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update or tests (if none of the other choices apply)

Checklist

• I have read the CONTRIBUTING.md doc
• I have added tests and/or examples that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

[github-actions]

Package	Line Rate	Branch Rate	Health
src.manage.usage	0%	0%	❌
src.speak	4%	0%	❌
src.auth	0%	0%	❌
src.manage.keys	0%	0%	❌
src	72%	67%	➖
src.manage	3%	0%	❌
src.common	89%	92%	✔
src.manage.projects	0%	0%	❌
src.listen	32%	12%	❌
Summary	52% (1719 / 3333)	37% (89 / 240)	➖