fix: manager generates mTLS certificates for arbitrary IP addresses

[gaius-qi]

Description

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[fcgxz2003]

LGTM

[codecov]

Codecov Report

Merging #2615 (750b57f) into main (77c91cb) will decrease coverage by 0.01%.
The diff coverage is 40.00%.

@@            Coverage Diff             @@
##             main    #2615      +/-   ##
==========================================
- Coverage   51.45%   51.45%   -0.01%     
==========================================
  Files         158      158              
  Lines       21085    21069      -16     
==========================================
- Hits        10850    10841       -9     
+ Misses       9605     9601       -4     
+ Partials      630      627       -3     

Flag	Coverage Δ
Object-compatibility-e2etests	?
e2etests	?
unittests	51.45% <40.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
manager/rpcserver/security_server_v1.go	61.70% <40.00%> (-1.79%)	⬇️

... and 2 files with indirect coverage changes