Prepare for new azdev

[bebound]

Check if CI works in new azdev Azure/azure-cli-dev-tools#359

As pylint version bumps to 2.17, many new rules are added. I guess the service team may need to fix their code style when PR is submitted.

[azure-client-tools-bot-prd]

️✔️Azure CLI Extensions Breaking Change Test

️✔️Non Breaking Changes

[azure-client-tools-bot-prd]

Hi @bebound,
Please write the description of changes which can be perceived by customers into HISTORY.rst.
If you want to release a new extension version, please update the version in setup.py as well.

[yonzhan]

Thank you for your contribution! We will review the pull request and get back to you soon.

[bebound]

No idea why lots of W503 errors are raised in Static Analysis test.

/mnt/vss/_work/1/s/src/ssh/azext_ssh/ssh_info.py:144:26: W503 line break before binary operator
/mnt/vss/_work/1/s/src/datafactory/azext_datafactory/manual/custom.py:130:13: W503 line break before binary operator

[bebound]

In this PR, we found that the extension style check is not working for a long time.
It uses an ancient task

- bash: pip install wheel==0.30.0 pylint==1.9.5 flake8==3.5.0 requests  
displayName: 'Install wheel, pylint, flake8, requests'  
- bash: python scripts/ci/source_code_static_analysis.py

, which raises

File "/usr/local/lib/python3.6/site-packages/pylint/checkers/imports.py", line 712, in _check_imports_order
    isort_obj = isort.SortImports(
AttributeError: module 'isort' has no attribute 'SortImports'

This is fixed in #6509

Ref: PyCQA/isort#1273 (comment)