fix: skip cell_type if from_poscar is True in init_bulk

[HuangJiameng]

• skip cell_type if from_poscar is True
• use from_poscar = jdata.get('from_poscar', False) to get from_poscar

[codecov-commenter]

Codecov Report

Merging #930 (ae36f72) into devel (4cb8550) will decrease coverage by 0.07%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##            devel     #930      +/-   ##
==========================================
- Coverage   38.21%   38.13%   -0.08%     
==========================================
  Files          99       99              
  Lines       17819    17879      +60     
==========================================
+ Hits         6809     6819      +10     
- Misses      11010    11060      +50     

Impacted Files	Coverage Δ
dpgen/data/gen.py	47.87% <66.66%> (-0.01%)	⬇️
dpgen/generator/lib/lammps.py	61.07% <0.00%> (-11.52%)	⬇️
dpgen/dispatcher/AWS.py	25.26% <0.00%> (-2.87%)	⬇️
dpgen/data/surf.py	66.46% <0.00%> (-0.87%)	⬇️
dpgen/generator/run.py	61.92% <0.00%> (-0.22%)	⬇️
dpgen/generator/arginfo.py	100.00% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[AnguseZhang]

@HuangJiameng Please run an e2e test.

[HuangJiameng]

@HuangJiameng Please run an e2e test.

Done