github action: when creating a release, make it as draft before

[sylvestre]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 71.65%. Comparing base (5709f06) to head (3400997).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2458      +/-   ##
==========================================
- Coverage   71.66%   71.65%   -0.02%     
==========================================
  Files          66       66              
  Lines       36530    36530              
==========================================
- Hits        26180    26176       -4     
- Misses      10350    10354       +4     

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