Refactor ci flow

[yanganto]

Fix MSRV issue of #160

• Bumps MSRV
• CI will use MSRV from Rust manifest (Cargo.toml)
• reduce using actions-rs, which is no longer maintained after Oct 13, 2023.
• add cli as default package, such that people can easier to use rgb with special commit or master branch by following command anywhere
  nix run github:RGB-WG/rgb -- validate <FILE> (work after this PR merged)
  nix run github:RGB-WG/rgb/9492fd3e82aaab65e77b767f09d85ab2d38a8bad -- validate <FILE>

[yanganto]

@dr-orlovsky
Please be kindly reminded.
This PR will go into v0.11 not master, and solve the trivial CI issues.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.0%. Comparing base (f2f2b22) to head (ac2c92f).
Report is 157 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##           master   #161      +/-   ##
========================================
- Coverage    29.9%   0.0%   -29.9%     
========================================
  Files          10     10              
  Lines        1273    896     -377     
========================================
- Hits          381      0     -381     
- Misses        892    896       +4     

Flag	Coverage Δ
rust	0.0% <ø> (-29.9%)	⬇️

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[dr-orlovsky]

ACK ac2c92f