fix: allow for backwards compatibility of durations defined in days (cherry-pick #24769 for 3.1)

[argo-cd-cherry-pick-bot]

Cherry-picked fix: allow for backwards compatibility of durations defined in days (#24769)

Signed-off-by: lplazas [email protected]

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.33%. Comparing base (54bab39) to head (643c95d).
⚠️ Report is 2 commits behind head on release-3.1.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-3.1   #24771      +/-   ##
===============================================
- Coverage        60.36%   60.33%   -0.03%     
===============================================
  Files              346      346              
  Lines            59261    59274      +13     
===============================================
- Hits             35773    35765       -8     
- Misses           20606    20625      +19     
- Partials          2882     2884       +2     

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