refactor: use CURRENT_DATE instead of CURDATE()

[c-p-b]

This syntax is supported by both postgres and mariadb

[codecov]

Codecov Report

Merging #31356 (a2ad3d6) into develop (2a9105f) will increase coverage by 0.03%.
The diff coverage is 36.36%.

@@             Coverage Diff             @@
##           develop   #31356      +/-   ##
===========================================
+ Coverage    63.62%   63.65%   +0.03%     
===========================================
  Files          984      984              
  Lines        67550    67555       +5     
===========================================
+ Hits         42979    43004      +25     
+ Misses       24571    24551      -20     

Impacted Files	Coverage Δ
...xt/accounts/doctype/payment_entry/payment_entry.py	69.09% <0.00%> (ø)
...eport/inactive_sales_items/inactive_sales_items.py	0.00% <ø> (ø)
erpnext/controllers/queries.py	62.31% <ø> (ø)
.../projects/doctype/project_update/project_update.py	0.00% <ø> (ø)
...ng/report/inactive_customers/inactive_customers.py	0.00% <ø> (ø)
...eport/sales_order_analysis/sales_order_analysis.py	80.00% <ø> (ø)
erpnext/setup/doctype/email_digest/email_digest.py	25.92% <ø> (ø)
erpnext/stock/doctype/batch/batch.py	83.95% <ø> (+0.61%)	⬆️
erpnext/crm/doctype/opportunity/opportunity.py	69.58% <40.00%> (-0.19%)	⬇️
erpnext/support/doctype/issue/issue.py	65.23% <40.00%> (+0.98%)	⬆️
... and 32 more

[ankush]

unrelated patch failure 👀