Fix FTBFS bug for OpenSSL 4.0 dependency now in experimental for Debian

[rroessler]

Description

As per PR title, helps address issue: #411

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 57.14286% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.31%. Comparing base (212abe2) to head (205eda3).
⚠️ Report is 5 commits behind head on develop.

Files with missing lines	Patch %	Lines
libs/rest/test/Certificate.hpp	57.14%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #412      +/-   ##
===========================================
- Coverage    52.32%   52.31%   -0.01%     
===========================================
  Files         1251     1251              
  Lines       102288   102297       +9     
  Branches     15201    15202       +1     
===========================================
- Hits         53522    53517       -5     
- Misses       48766    48780      +14     

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