fix: LR scheduler's final LR in TF scripts

[charlesmindee]

This PR updates the lr scheduler in tf scripts to have the same training parameters in both tensorflow and pytorch scripts. The changes were already made locally on the training machine before launching trainings, nothing to worry about.

[codecov]

Codecov Report

Merging #397 (fbef2e5) into main (0359ecc) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #397      +/-   ##
==========================================
+ Coverage   95.85%   95.87%   +0.02%     
==========================================
  Files          91       91              
  Lines        3761     3761              
==========================================
+ Hits         3605     3606       +1     
+ Misses        156      155       -1     

Flag	Coverage Δ
unittests	95.87% <ø> (+0.02%)	⬆️

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

Impacted Files	Coverage Δ
...dels/detection/differentiable_binarization/base.py	91.97% <0.00%> (+0.61%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0359ecc...fbef2e5. Read the comment docs.

[fg-mindee]

Thanks!