Fix Electrs installation on Github CI

[ouziel-slama]

• Double-check the spelling and grammar of all strings, code comments, etc.
• Double-check that all code is deterministic that needs to be
• Add tests to cover any new or revised logic
• Ensure that the test suite passes
• Update the project release notes
• Update the project documentation, as appropriate, with a corresponding Pull Request in the Documentation repository

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.48%. Comparing base (37fa7d2) to head (60af8f6).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3063      +/-   ##
===========================================
+ Coverage    75.41%   77.48%   +2.06%     
===========================================
  Files          102      102              
  Lines        13505    13505              
===========================================
+ Hits         10185    10464     +279     
+ Misses        3320     3041     -279     

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