CSUB-972: Add tests for creditcoin-cli inside the container

[atodorov]

Description of proposed changes

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Practical tips for PR review & merge:

• All GitHub Actions report PASS
• Newly added code/functions have unit tests
  • Coverage tools report all newly added lines as covered
  • The positive scenario is exercised
  • Negative scenarios are exercised, e.g. assert on all possible errors
  • Assert on events triggered if applicable
  • Assert on changes made to storage if applicable
• Modified behavior/functions - try to make sure above test items are covered
• Integration tests are added if applicable/needed

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (4141072) 70.64% compared to head (1adc8c5) 71.66%.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1464      +/-   ##
==========================================
+ Coverage   70.64%   71.66%   +1.02%     
==========================================
  Files         111      111              
  Lines       13009    13009              
  Branches      128      128              
==========================================
+ Hits         9190     9323     +133     
+ Misses       3819     3676     -143     
- Partials        0       10      +10     

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[github-actions]

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