fix: typeerror on TDS payable monthly report

[ruthra-kumar]

[codecov]

Codecov Report

Merging #37707 (dc5d2c7) into develop (514d543) will decrease coverage by 0.02%.
Report is 65 commits behind head on develop.
The diff coverage is 87.41%.

@@             Coverage Diff             @@
##           develop   #37707      +/-   ##
===========================================
- Coverage    67.34%   67.32%   -0.02%     
===========================================
  Files          757      757              
  Lines        60098    60147      +49     
===========================================
+ Hits         40472    40496      +24     
- Misses       19626    19651      +25     

Files	Coverage Δ
erpnext/accounts/general_ledger.py	90.55% <ø> (ø)
...tax_withholding_details/tax_withholding_details.py	79.45% <100.00%> (ø)
...g/doctype/supplier_scorecard/supplier_scorecard.py	55.97% <ø> (ø)
erpnext/manufacturing/doctype/bom/bom.py	78.49% <100.00%> (ø)
erpnext/setup/doctype/company/company.py	74.21% <ø> (ø)
erpnext/stock/get_item_details.py	83.06% <ø> (ø)
erpnext/stock/stock_ledger.py	84.53% <100.00%> (ø)
...ounts/doctype/purchase_invoice/purchase_invoice.py	84.29% <93.33%> (ø)
erpnext/controllers/stock_controller.py	82.20% <92.30%> (+0.05%)	⬆️
erpnext/setup/doctype/employee/employee.py	57.76% <0.00%> (ø)
... and 5 more

... and 9 files with indirect coverage changes