fix: Added RequestException class to fix unhandled exception

[shafqatfarhan]

Merge checklist:
Check off if complete or not applicable:

• Documentation updated (not only docstrings)
• Fixup commits are squashed away
• Unit tests added/updated
• Manual testing instructions provided
• Noted any: Concerns, dependencies, migration issues, deadlines, tickets

Post-merge:

• Backported to latest and next named releases

[Copilot]

Pull Request Overview

This PR fixes an unhandled exception by adding urllib3's HTTPError class to the exception handling in the SDN check functionality. The change ensures that both requests and urllib3 HTTP errors are properly caught and handled by the fallback mechanism.

• Added urllib3.exceptions.HTTPError import and exception handling
• Updated test coverage to verify both urllib3 and requests HTTPError exceptions are handled
• Renamed existing test method to clarify it specifically tests requests HTTPError

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
sanctions/apps/api/v1/views.py	Added urllib3.exceptions.HTTPError to exception handling in SDN check
sanctions/apps/api/v1/tests/test_views.py	Added test for urllib3 HTTPError and renamed existing test for clarity

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[github-actions]

Coverage report

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File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
sanctions/apps/api/v1
views.py
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