Make Timer_TEST more robust

[chapulina]

🦟 Bug fix

Summary

It's been a bit flaky, some CI machines are "too" fast.

Checklist

• Signed all commits for DCO
• Added tests
• Updated documentation (as needed)
• Updated migration guide (as needed)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

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[codecov]

Codecov Report

Merging #343 (eb51f8f) into main (0eafe48) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #343   +/-   ##
=======================================
  Coverage   91.66%   91.66%           
=======================================
  Files           1        1           
  Lines          48       48           
=======================================
  Hits           44       44           
  Misses          4        4           

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[mjcarroll]

Ha, did the same thing over here, so good with me: 0c3e647