fix: set required to true for redisPassword in Redis statestore metadata.yaml as per docs

[jake-engelberg]

Description

Matched redisPassword being a required field in the statestore .yaml as per the docs:
https://docs.dapr.io/reference/components-reference/supported-pubsub/setup-redis-pubsub/

Issue reference

Please reference the issue this PR will close: dapr/docs#4193

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Unit tests passing
• End-to-end tests passing
• Extended the documentation / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]
• Specification has been updated / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]
• Provided sample for the feature / Created issue in the https://github.com/dapr/docs/ repo: dapr/docs#[issue number]

[berndverst]

Sorry, the docs are incorrect. This field is not required. This metadata yaml file is the source of truth - the docs may be outdated.

Please open a docs PR instead.

[bibryam]

@berndverst any idea why redis pubsub component has it as mandatory, but redis state component has it as optional? Can it be a discrepancy in the metadata files?