feat(security): add X-Frame-Options header to prevent clickjacking

[Sapthagiri777]

Description

Add the X-Frame-Options: DENY header to Swagger UI responses to prevent
clickjacking attacks, as requested in #22877.

Changes

• Add X-Frame-Options: DENY header to Swagger UI responses
• Prevents clickjacking attacks by blocking iframe embedding
• Fixes Add X-Frame-Options header to Swagger UI to prevent clickjacking #22877

Checklist

• Either (a) I've created an enhancement proposal and discussed it with the community,
  (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Title of the PR guidelines.
• I've included Fixes #22877 in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them. (not applicable)
• Does this PR require documentation updates? (likely no)
• I've updated documentation as required by this PR. (if not needed, leave unchecked)
• I have signed off all my commits as required by DCO.
• I have written unit and/or e2e tests for my change.
• My build is green.
• I have added a brief description of why this PR is necessary and what it solves.
• Optional. My organization is added to USERS.md.
• Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.61%. Comparing base (b543e18) to head (6a4c892).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #25760      +/-   ##
==========================================
- Coverage   62.63%   62.61%   -0.02%     
==========================================
  Files         353      353              
  Lines       50159    50160       +1     
==========================================
- Hits        31416    31408       -8     
- Misses      15725    15736      +11     
+ Partials     3018     3016       -2     

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[nitishfy]

LGTM. Can you go and fix the lint checks please?

[Sapthagiri777]

“Hi @nitishfy , the lint issues and DCO are fixed, and all checks are green. Please let me know if anything else is needed.”