fix: error when there is no billing address in shopify order

[saadsafda]

fix: error when there is no billing address in shopify order

[mubi64]

fixes #280

[codecov]

Codecov Report

Attention: 275 lines in your changes are missing coverage. Please review.

Comparison is base (1cbdf6b) 40.95% compared to head (6412ce0) 39.58%.
Report is 165 commits behind head on main.

Files	Patch %	Lines
...octype/amazon_sp_api_settings/amazon_repository.py	68.20%	55 Missing ⚠️
ecommerce_integrations/unicommerce/pick_list.py	0.00%	51 Missing ⚠️
...e/amazon_sp_api_settings/amazon_sp_api_settings.py	14.58%	41 Missing ⚠️
ecommerce_integrations/shopify/order.py	14.28%	36 Missing ⚠️
...commerce_integrations/unicommerce/delivery_note.py	46.93%	26 Missing ⚠️
ecommerce_integrations/unicommerce/invoice.py	23.07%	20 Missing ⚠️
ecommerce_integrations/shopify/inventory.py	0.00%	18 Missing ⚠️
ecommerce_integrations/unicommerce/order.py	44.44%	5 Missing ⚠️
.../zenoti/doctype/zenoti_settings/zenoti_settings.py	0.00%	4 Missing ⚠️
...zon/doctype/amazon_fields_map/amazon_fields_map.py	0.00%	3 Missing ⚠️
... and 7 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #284      +/-   ##
==========================================
- Coverage   40.95%   39.58%   -1.37%     
==========================================
  Files          62       68       +6     
  Lines        4244     4406     +162     
==========================================
+ Hits         1738     1744       +6     
- Misses       2506     2662     +156     

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[ankush]

Can you please send PR to develop, I can't merge things to main directly.