fix: exporter connect to custom redis port

[drivebyer]

Description

Fixes exporter connect to custom redis port

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist

• Tests have been added/modified and all tests pass.
• Functionality/bugs have been confirmed to be unchanged or fixed.
• I have performed a self-review of my own code.
• Documentation has been updated or added where necessary.

Additional Context

[codecov]

Codecov Report

Attention: 7 lines in your changes are missing coverage. Please review.

Comparison is base (8e8ded9) 29.37% compared to head (60a6eec) 29.32%.

Files	Patch %	Lines
k8sutils/statefulset.go	0.00%	5 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #736      +/-   ##
==========================================
- Coverage   29.37%   29.32%   -0.06%     
==========================================
  Files          19       19              
  Lines        3176     3182       +6     
==========================================
  Hits          933      933              
- Misses       2212     2217       +5     
- Partials       31       32       +1     

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