fix: fix validation for GitLab 14.5 tokens

[ygarasab]

Description

• update token validation both in token length and prefix (now standard on gitlab)

• update documentation for token validation

• update '*' based token alias showed in log for proper length

This solves the current gitlab.com issue with the command

glab auth status

But there are still some warning messages related to some db.org and gl.io domains, but I don't really know what that's about :(

Related Issue

Resolves #926

How Has This Been Tested?

Local testing

Screenshots (if appropriate)

Types of changes

• [x] Bug fix (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 change)
• [ ] Documentation
• [ ] Chore (Related to CI or Packaging to platforms)

[codecov[bot]]

Codecov Report

Merging #971 (3ea05c9) into trunk (ce81f27) will not change coverage. The diff coverage is 100.00%.

@@           Coverage Diff           @@
##            trunk     #971   +/-   ##
=======================================
  Coverage   59.51%   59.51%           
=======================================
  Files          97       97           
  Lines        7687     7687           
=======================================
  Hits         4575     4575           
  Misses       2702     2702           
  Partials      410      410           

Impacted Files	Coverage Δ
commands/auth/status/status.go	91.86% <100.00%> (ø)

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[ygarasab]

I'm gonna give a go at the tests :D, never tested in go though