Migrate tl expected to libexpected dev

[otamachan]

Switch dependency from ROS tl_expected to system libexpected-dev to resolve overlapping header conflicts .

See PickNikRobotics/generate_parameter_library#311

[christophfroehlich]

This is basically #155 + #156?
Could you maybe have a look at #156, does that make sense to harden the fmt output just to satisfy tests?

[otamachan]

I tested RSL_BUILD_TESTING=ON on my fork (otamachan#1) and confirmed that the following changes from #155/#156 are needed:

• range-v3 in Windows CI pixi dependencies (test dependency)
• stringify helper for consistent fmt output across platforms (RHEL test failures: 1.0 vs 1)
• DISCOVERY_MODE PRE_TEST for catch_discover_tests (Windows DLL not found at build-time discovery)

I can squash these fixes into #159, or we can merge #156 first and rebase #159 on top of it. Which do you prefer?

[christophfroehlich]

Can you please leave a review in #156? Then I merge it and you can merge master into your branch.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.63%. Comparing base (e93c545) to head (664ef11).
⚠️ Report is 30 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #159      +/-   ##
==========================================
- Coverage   98.65%   98.63%   -0.02%     
==========================================
  Files          11       12       +1     
  Lines         223      220       -3     
  Branches        0       22      +22     
==========================================
- Hits          220      217       -3     
  Misses          3        3              

Flag	Coverage Δ
humble	?
rolling	98.63% <ø> (-0.02%)	⬇️

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[christophfroehlich]

Now it's basically a duplicate of mine, but kudos for you that you brought the topic up!

[otamachan]

Thanks for the reviews and support on PickNikRobotics/generate_parameter_library#311. It looks like we're close to resolving it!