fix(asset): expected value after useful life validation

[nextchamp-saqib]

For an existing Asset with,
Gross Purchase Amount - 10,000, Opening Accumulated Depreciation - 1,000, No. of Depreciation booked - 2

Creating a Depreciation Schedule for this asset with Straight Line method and with 2,000 as Expected Value after Useful Life value throws an error - "Expected value after useful life must be greater than or equal to 4000.0"

[codecov]

Codecov Report

Merging #27539 (033e59e) into develop (f8c1c73) will increase coverage by 0.00%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           develop   #27539     +/-   ##
==========================================
  Coverage    54.49%   54.49%             
==========================================
  Files         1333     1248     -85     
  Lines        70736    67514   -3222     
==========================================
- Hits         38545    36793   -1752     
+ Misses       32191    30721   -1470     

Impacted Files	Coverage Δ
erpnext/assets/doctype/asset/asset.py	71.60% <50.00%> (-0.36%)	⬇️
erpnext/utilities/product.py	15.94% <0.00%> (-34.79%)	⬇️
erpnext/hr/doctype/job_applicant/job_applicant.py	48.21% <0.00%> (-32.35%)	⬇️
erpnext/shopping_cart/product_info.py	32.35% <0.00%> (-20.59%)	⬇️
...e/asset_value_adjustment/asset_value_adjustment.py	87.80% <0.00%> (-3.66%)	⬇️
...xt/accounts/doctype/journal_entry/journal_entry.py	68.22% <0.00%> (-2.56%)	⬇️
...e/shopping_cart_settings/shopping_cart_settings.py	66.03% <0.00%> (-1.89%)	⬇️
...ctype/accounting_dimension/accounting_dimension.py	64.34% <0.00%> (-1.56%)	⬇️
erpnext/shopping_cart/product_query.py	61.19% <0.00%> (-1.50%)	⬇️
...e/period_closing_voucher/period_closing_voucher.py	88.23% <0.00%> (-1.48%)	⬇️
... and 159 more