add bandit, a security linter

[skshetry]

See https://github.com/PyCQA/bandit.

[codecov-commenter]

Codecov Report

Base: 77.74% // Head: 77.85% // Increases project coverage by +0.10% 🎉

Coverage data is based on head (1ae5610) compared to base (527a324).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #94      +/-   ##
==========================================
+ Coverage   77.74%   77.85%   +0.10%     
==========================================
  Files          21       21              
  Lines         912      912              
  Branches      140      140              
==========================================
+ Hits          709      710       +1     
+ Misses        179      178       -1     
  Partials       24       24              

Impacted Files	Coverage Δ
src/dvc_task/proc/process.py	85.59% <100.00%> (ø)
src/dvc_task/worker/temporary.py	81.96% <0.00%> (ø)
src/dvc_task/contrib/kombu_filesystem.py	39.28% <0.00%> (ø)
tests/worker/test_temporary.py	100.00% <0.00%> (+3.03%)	⬆️

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