feat: enhance Redis HA and node scheduling strategy

[drivebyer]

• Updated e2e test to simulate node shutdown instead of pod deletion
• Added pod anti-affinity configuration for Redis replication and sentinel nodes
• Removed unnecessary StatefulSet readiness check in Redis replication controller
• Improved node scheduling to distribute Redis pods across different worker nodes

Description

Fixes #1217 #1231

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

All modified and coverable lines are covered by tests ✅

Project coverage is 29.06%. Comparing base (60ef5a2) to head (493df1a).
Report is 42 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1237      +/-   ##
==========================================
- Coverage   30.20%   29.06%   -1.15%     
==========================================
  Files          55       58       +3     
  Lines        6294     6693     +399     
==========================================
+ Hits         1901     1945      +44     
- Misses       4200     4586     +386     
+ Partials      193      162      -31     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.