feat: add redis operator helm chart and release workflow

[drivebyer]

Description

In this PR, I copied the Redis Operator Helm chart source code from https://github.com/OT-CONTAINER-KIT/helm-charts/tree/main/charts/redis-operator and added a release workflow. This allows us to manage the operator release process within the current repository.

TEST in https://github.com/drivebyer/redis-operator-1/actions/runs/9148807644

Type of change

• New feature (non-breaking change which adds functionality)

Checklist

• [x] 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[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 38.96%. Comparing base (d121d86) to head (ba0be0b). Report is 53 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #941 +/- ## ========================================== + Coverage 35.20% 38.96% +3.76% ========================================== Files 19 20 +1 Lines 3213 2728 -485 ========================================== - Hits 1131 1063 -68 + Misses 2015 1594 -421 - Partials 67 71 +4 ```

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