Fix task_id return when no calc_types given

[munrojm]

No description provided.

[codecov-commenter]

Codecov Report

Merging #527 (b789ea5) into main (951d17b) will decrease coverage by 0.22%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #527      +/-   ##
==========================================
- Coverage   92.81%   92.58%   -0.23%     
==========================================
  Files          34       34              
  Lines        1309     1309              
==========================================
- Hits         1215     1212       -3     
- Misses         94       97       +3     

Impacted Files	Coverage Δ
src/mp_api/client.py	92.01% <0.00%> (ø)
src/mp_api/core/client.py	90.96% <0.00%> (-0.94%)	⬇️

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