Remove nightlies that test dev-utils against Fast DDS 2.x

[emiliocuestaf]

As far as I'm concerned, dev-utils is never used over Fast DDS 2.x and it does not seem likely that this will change in the future. This PR just removes those (failing) tests from the CI.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.35%. Comparing base (07c9f62) to head (18d56af).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #150      +/-   ##
==========================================
+ Coverage   60.30%   60.35%   +0.05%     
==========================================
  Files          65       65              
  Lines        1945     1945              
  Branches      552      552              
==========================================
+ Hits         1173     1174       +1     
+ Misses        450      449       -1     
  Partials      322      322              

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