fix: incorrect fix of conversion factor in PP

[rohitwaghchaure]

Issue
The fix #32654 was related to Material request but the quantity in production plan is still incorrect

After Fix

The fix will take care of both Production Plan as well Material Request

[codecov]

Codecov Report

Merging #32947 (490b0e3) into develop (8581b78) will increase coverage by 0.02%.
The diff coverage is 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #32947      +/-   ##
===========================================
+ Coverage    63.81%   63.83%   +0.02%     
===========================================
  Files          817      819       +2     
  Lines        58510    58723     +213     
===========================================
+ Hits         37338    37488     +150     
- Misses       21172    21235      +63     

Impacted Files	Coverage Δ
...cturing/doctype/production_plan/production_plan.py	74.87% <100.00%> (+0.04%)	⬆️
...e_commerce/variant_selector/item_variants_cache.py	76.38% <0.00%> (-1.39%)	⬇️
erpnext/stock/doctype/batch/batch.py	83.33% <0.00%> (-0.62%)	⬇️
...e/subcontracting_receipt/subcontracting_receipt.py	92.30% <0.00%> (-0.60%)	⬇️
erpnext/stock/doctype/pick_list/pick_list.py	76.74% <0.00%> (-0.08%)	⬇️
erpnext/controllers/stock_controller.py	92.08% <0.00%> (-0.04%)	⬇️
erpnext/hooks.py	100.00% <0.00%> (ø)
erpnext/setup/doctype/company/company.py	73.50% <0.00%> (ø)
...t/manufacturing/doctype/workstation/workstation.py	90.16% <0.00%> (ø)
.../accounts/doctype/bank_guarantee/bank_guarantee.py	0.00% <0.00%> (ø)
... and 19 more