Mark mars tests as long

[sandorkertesz]

Description

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

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.29%. Comparing base (7410019) to head (8194339).
⚠️ Report is 15 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1055   +/-   ##
=======================================
  Coverage   82.29%   82.29%           
=======================================
  Files         237      237           
  Lines       16794    16806   +12     
  Branches      818      818           
=======================================
+ Hits        13821    13831   +10     
- Misses       2730     2732    +2     
  Partials      243      243           

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