feat(tm2): Implement Basic Authentication in HTTP Client

[linhpn99]

From #2450

This PR:

• Defines AuthInfo to carry basic authentication information when initializing http.Client
• Adds necessary unit tests

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
tm2/pkg/bft/rpc/lib/client/http/client.go	80.00%	2 Missing and 2 partials ⚠️

📢 Thoughts on this report? Let us know!

[zivkovicmilos]

Blocking this until I give a detailed review -- I'm not convinced think this is the way to go

[leohhhn]

#2333 (comment)

[github-actions]

This PR is stale because it has been open 3 months with no activity. Remove stale label or comment or this will be closed in 3 months.