feat(connector): [Shift4] Enhance error mapping to support issuer error codes

[Anurag-05-prog]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Closes this issue

Description

Enhanced error mapping to support issuer error codes

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

How did you test it?

Not able to test as none of the card numbers in this documentation is resulting into issuer decline error.

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible

[semanticdiff-com]

Review changes with  

Changed Files

File	Status
crates/hyperswitch_connectors/src/connectors/shift4.rs	0% smaller
crates/hyperswitch_connectors/src/connectors/shift4/transformers.rs	0% smaller

[codecov]

Codecov Report

❌ Patch coverage is 0% with 4 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (main@b6e3ac8). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...es/hyperswitch_connectors/src/connectors/shift4.rs	0.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #10748   +/-   ##
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  Coverage        ?    6.39%           
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  Files           ?     1263           
  Lines           ?   317486           
  Branches        ?        0           
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  Hits            ?    20305           
  Misses          ?   297181           
  Partials        ?        0           

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