Inefficient use of a for loop

[AsharSi]

Description

This PR improves how HTTP headers are set in the request. Replacing headers.keySet() with headers.entrySet().

This change enhances efficiency by directly accessing both the key and value in a single iteration, rather than fetching the key first and then looking up the value in the map.

Fixes: #10529

Types of changes

• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] Enhancement (improves an existing feature and functionality)
• [ ] Cleanup (Code refactoring and cleanup, that may add test cases)
• [ ] build/CI
• [ ] test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• [ ] Major
• [X] Minor

Bug Severity

• [ ] BLOCKER
• [ ] Critical
• [ ] Major
• [ ] Minor
• [ ] Trivial

Screenshots (if appropriate):

How Has This Been Tested?

• Ensured that HTTP requests are still correctly setting headers.
• Verified that functionality remains unchanged with test cases.

How did you try to break this feature and the system with this change?