automate an e2e test with Ledger hardware wallet emulator - 1st follow-up

[tzemanovic]

Describe your changes

follow-up to #3719 to fix the path to speculos

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.69%. Comparing base (21c9997) to head (f6ba653).
Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3801      +/-   ##
==========================================
- Coverage   72.69%   72.69%   -0.01%     
==========================================
  Files         338      338              
  Lines      104467   104467              
==========================================
- Hits        75944    75942       -2     
- Misses      28523    28525       +2     

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