fix: skip v0 tests in v1

[b-matteo]

Description

Skip V0 tests in V1 context

Issue linked

These v0 tests were still running in V1:

• test_design:test_old_backend_version
• test_design:test_legacy_export_download
• test_nurbs:test_nurbs_operations_with_old_backend
• test_imprint_project_nurbs_old_backend
• test_nurbs_surface_body_creation_using_old_backend
  this PR is about skipping them in V1 context

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[RobPasMue]

Thanks @b-matteo ! Could we avoid the code-duplication by moving the skip to the fixtures directly?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.38%. Comparing base (942d005) to head (a21fd8d).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2603      +/-   ##
==========================================
- Coverage   94.89%   90.38%   -4.52%     
==========================================
  Files         173      173              
  Lines       14441    14441              
==========================================
- Hits        13704    13052     -652     
- Misses        737     1389     +652     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[RobPasMue]

Looking into a different mechanism for this..

[RobPasMue]

This PR is not needed - the fixtures are already taking care of the skip