Updated cosmosdb functions to use v4 extension

[gavin-aguiar]

Description

Updating cosmosdb tests to use v4 extension

Fixes #

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PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• If applicable, the PR references the bug/issue that it fixes in the description.
• New Unit tests were added for the changes made and CI is passing.

Quality of Code and Contribution Guidelines

• I have read the contribution guidelines.

[codecov]

Codecov Report

Merging #1227 (30c584a) into dev (199cee8) will decrease coverage by 53.39%.
The diff coverage is n/a.

❗ Current head 30c584a differs from pull request most recent head 95e026b. Consider uploading reports for the commit 95e026b to get more accurate results

@@             Coverage Diff             @@
##              dev    #1227       +/-   ##
===========================================
- Coverage   85.39%   32.00%   -53.39%     
===========================================
  Files          34       34               
  Lines        1903     1903               
  Branches      366      278       -88     
===========================================
- Hits         1625      609     -1016     
- Misses        217     1293     +1076     
+ Partials       61        1       -60     

Flag	Coverage Δ
unittests	32.00% <ø> (-53.34%)	⬇️

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see 24 files with indirect coverage changes