Revert "Remove sessions cleaning for data workflows tests (#1788)"

[doctrino]

This reverts commit bf4cc5a.

Description

Please describe the change you have made.

Checklist:

• Tests added/updated.
• Documentation updated. Documentation is generated from docstrings - these must be updated according to your change.
  If a new method has been added it should be referenced in cognite.rst in order to generate docs based on its docstring.
• Changelog updated in CHANGELOG.md.
• Version bumped. If triggering a new release is desired, bump the version number in _version.py and pyproject.toml per semantic versioning.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.89%. Comparing base (684d200) to head (0365033).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1796   +/-   ##
=======================================
  Coverage   92.88%   92.89%           
=======================================
  Files         121      121           
  Lines       17693    17696    +3     
=======================================
+ Hits        16435    16439    +4     
+ Misses       1258     1257    -1     

see 1 file with indirect coverage changes