Added namespace to tls configuration

[egorksv]

Description

Changed podName to podName.namespace in redis-client config so that is it possible to issue *.namespace wildcard TLS certificate with cert-manager

Fixes #447

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.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3e6fcb9) 32.79% compared to head (642f4c0) 32.79%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #763   +/-   ##
=======================================
  Coverage   32.79%   32.79%           
=======================================
  Files          19       19           
  Lines        3232     3232           
=======================================
  Hits         1060     1060           
  Misses       2113     2113           
  Partials       59       59           

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[drivebyer]

Does this change break compatibility with the old certificate? @egorksv