fix: don't set "dependencies" as empty list for uv toml if there is …

[monchin]

…no dependencies in the raw toml file (#3378)

Pull Request Checklist

• A news fragment is added in news/ describing what is new.
• Test cases added for changed code.

Describe what you have changed in this PR.

fixed #3378

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.22%. Comparing base (d363210) to head (bdfd387).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3381      +/-   ##
==========================================
- Coverage   85.22%   85.22%   -0.01%     
==========================================
  Files         112      112              
  Lines       11494    11493       -1     
  Branches     2520     2520              
==========================================
- Hits         9796     9795       -1     
  Misses       1172     1172              
  Partials      526      526              

Flag	Coverage Δ
unittests	85.02% <ø> (-0.01%)	⬇️

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[monchin]

The failed test says "Module 'tomli' is missing"