Change from using flaky to pytest_rerunfailures

[jonathan-eq]

Issue
Resolves #7332

Approach
Changes from using flaky to pytest_rerunfailures

(Screenshot of new behavior in GUI if applicable)

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure tests pass locally (after every commit!)

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.53%. Comparing base (c385d31) to head (d58ede2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7346      +/-   ##
==========================================
- Coverage   85.23%   84.53%   -0.70%     
==========================================
  Files         382      382              
  Lines       22740    22740              
  Branches      884      880       -4     
==========================================
- Hits        19382    19223     -159     
- Misses       3248     3404     +156     
- Partials      110      113       +3     

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[berland]

LGTM!