Fix typo in TimeShifter comments

[AndreKurait]

Description

Fix typo in TimeShifter comments

• Category: Maintenance
• Why these changes are required? Mitigate miscommunication with incorrect code comments
• What is the old behavior before changes and new behavior after changes? No behavior change

Issues Resolved

N/A

Is this a backport? If so, please add backport PR # and/or commits #
N/A

Testing

Pipeline tests, no functional change

Check List

• New functionality includes testing
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (47e1cf3) 76.45% compared to head (023840a) 75.28%.
Report is 31 commits behind head on main.

❗ Current head 023840a differs from pull request most recent head 5c09873. Consider uploading reports for the commit 5c09873 to get more accurate results

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #504      +/-   ##
============================================
- Coverage     76.45%   75.28%   -1.17%     
+ Complexity     1375     1355      -20     
============================================
  Files           158      158              
  Lines          6085     6085              
  Branches        530      530              
============================================
- Hits           4652     4581      -71     
- Misses         1075     1149      +74     
+ Partials        358      355       -3     

Flag	Coverage Δ
unittests	75.28% <100.00%> (-1.17%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[gregschohn]

Please shift the indents to 4 spaces to be consistent with the rest of the file.