Add retries to more tests.

[ciarams87]

Proposed changes

Some tests are failing pretty consistently in test runs, but often pass on a retry. This commit marks them as flaky.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto master
• I will ensure my PR is targeting the master branch and pulling from my branch from my own fork

[codecov-commenter]

Codecov Report

Merging #2355 (f6fed13) into master (0e9556a) will not change coverage.
The diff coverage is n/a.

❗ Current head f6fed13 differs from pull request most recent head cf46ca6. Consider uploading reports for the commit cf46ca6 to get more accurate results

@@           Coverage Diff           @@
##           master    #2355   +/-   ##
=======================================
  Coverage   53.69%   53.69%           
=======================================
  Files          48       48           
  Lines       14201    14201           
=======================================
  Hits         7625     7625           
  Misses       6338     6338           
  Partials      238      238           

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