feat: net.JoinHostPort replace fmt.Sprintf

[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.

[codecov]

Codecov Report

Merging #2622 (3eef5fd) into main (a5b0f74) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #2622      +/-   ##
==========================================
- Coverage   51.53%   51.51%   -0.02%     
==========================================
  Files         158      158              
  Lines       21100    21100              
==========================================
- Hits        10873    10869       -4     
- Misses       9600     9602       +2     
- Partials      627      629       +2     

Flag	Coverage Δ
Object-compatibility-e2etests	?
e2etests	?
unittests	51.51% <0.00%> (-0.02%)	⬇️

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Files Changed	Coverage Δ
client/config/dfstore.go	0.00% <0.00%> (ø)

... and 2 files with indirect coverage changes