fix(scripts/test): excluding venv folder from pydocstyle checks

[TheNomet]

Description

Removing the venv folder from the scope of pydocstyle.
When having the venv set up in the project forlder, pydocstyle fails because of some libraries not being complainant.

Checklist

• Add test cases to all the changes you introduce
• Run ./script/format and ./script/test locally to ensure this change passes linter check and test
• Test the changes on the local machine manually
• Update the documentation for the changes

Expected behavior

When running ./scripts/test with venv folder in the project folder, the script should not fail.

Steps to Test This Pull Request

1. set up venv in project folder
2. run ./scripts/test

[codecov]

Codecov Report

Merging #443 (54a438f) into master (ca0e4bc) will decrease coverage by 0.53%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #443      +/-   ##
==========================================
- Coverage   97.90%   97.36%   -0.54%     
==========================================
  Files          39       39              
  Lines        1384     1406      +22     
==========================================
+ Hits         1355     1369      +14     
- Misses         29       37       +8     

Flag	Coverage Δ
unittests	97.36% <100.00%> (-0.54%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
commitizen/cli.py	95.45% <ø> (-2.17%)	⬇️
commitizen/__version__.py	100.00% <100.00%> (ø)
commitizen/commands/version.py	100.00% <100.00%> (ø)
commitizen/config/base_config.py	90.47% <0.00%> (-9.53%)	⬇️
commitizen/cz/base.py	97.22% <0.00%> (-2.78%)	⬇️
commitizen/git.py	97.95% <0.00%> (-2.05%)	⬇️
commitizen/__main__.py	0.00% <0.00%> (ø)

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[Lee-W]

As we manage our env through poetry, I'm wondering why do you need venv in this directory?

[TheNomet]

That is a good point, it was my mistake to create a venv before setting up poetry. Feel free to disregard this PR.