[FIX] 14.0 cash rounding on invoices

[PierrickBrun]

No description provided.

[codecov]

Codecov Report

Merging #53 (f4a913d) into 14.0 (1003693) will increase coverage by 0.21%.
Report is 70 commits behind head on 14.0.
The diff coverage is 84.55%.

@@            Coverage Diff             @@
##             14.0      #53      +/-   ##
==========================================
+ Coverage   88.34%   88.56%   +0.21%     
==========================================
  Files          50       51       +1     
  Lines         884     1014     +130     
  Branches      103      159      +56     
==========================================
+ Hits          781      898     +117     
- Misses         90       99       +9     
- Partials       13       17       +4     

Files	Coverage Δ
pos_sale_order/models/pos_payment.py	100.00% <100.00%> (ø)
pos_sale_order/tests/common.py	95.45% <100.00%> (+0.21%)	⬆️
pos_sale_order/tests/test_closing_session.py	100.00% <100.00%> (ø)
pos_sale_order/tests/test_create_order.py	100.00% <100.00%> (ø)
pos_sale_order/wizards/__init__.py	100.00% <100.00%> (ø)
pos_sale_order_debug/tests/test_create_order.py	100.00% <100.00%> (ø)
pos_sale_order_delivery/tests/test_order.py	100.00% <100.00%> (ø)
pos_sale_order_load/tests/test_load_order.py	100.00% <100.00%> (ø)
...ale_order_no_payment/tests/test_closing_session.py	100.00% <100.00%> (ø)
pos_sale_order/models/sale_order.py	84.27% <83.33%> (+0.61%)	⬆️
... and 6 more

... and 3 files with indirect coverage changes

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