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)
• 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
• 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?

[boring-cyborg]

Congratulations on your first Pull Request and welcome to the Apache CloudStack community! If you have any issues or are unsure about any anything please check our Contribution Guide (https://github.com/apache/cloudstack/blob/main/CONTRIBUTING.md)
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[weizhouapache]

code lgtm

not tested yet

[weizhouapache]

@blueorangutan package

[blueorangutan]

@weizhouapache a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 16.26%. Comparing base (9c6f2a9) to head (e709eab).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
...direct/download/HttpsDirectTemplateDownloader.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main   #10576   +/-   ##
=========================================
  Coverage     16.26%   16.26%           
  Complexity    13388    13388           
=========================================
  Files          5674     5674           
  Lines        498929   498929           
  Branches      60338    60338           
=========================================
+ Hits          81154    81158    +4     
+ Misses       408736   408732    -4     
  Partials       9039     9039           

Flag	Coverage Δ
uitests	3.99% <ø> (ø)
unittests	17.12% <0.00%> (+<0.01%)	⬆️

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[blueorangutan]

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ debian ✔️ suse15. SL-JID 12806

[DaanHoogland]

@blueorangutan test

[blueorangutan]

@DaanHoogland a [SL] Trillian-Jenkins test job (ol8 mgmt + kvm-ol8) has been kicked to run smoke tests

[blueorangutan]

[SF] Trillian test result (tid-12782)
Environment: kvm-ol8 (x2), Advanced Networking with Mgmt server ol8
Total time taken: 57709 seconds
Marvin logs: https://github.com/blueorangutan/acs-prs/releases/download/trillian/pr10576-t12782-kvm-ol8.zip
Smoke tests completed. 141 look OK, 0 have errors, 0 did not run
Only failed and skipped tests results shown below:

Test	Result	Time (s)	Test File