[rule registry] Remove usages of refresh: true

[lukeelmers]

There are two usages of refresh: true in the rule registry files. These should be changed to refresh: wait_for or refresh: false:

1. x-pack/plugins/rule_registry/server/alert_data_client/alerts_client.ts
2. x-pack/plugins/rule_registry/server/utils/create_persistence_rule_type_wrapper.ts

This is particularly important for features which exist in serverless, though self-managed deployments would benefit from this change as well. See #158134 for more details.

Notes on each route from @kobelb:

1. Not used - can be removed
2. ~10x per minute on rule preview requests with suppression enabled - can be removed - Refreshing allows the rule preview API to work much faster, but we could limit previews to not work with suppression or accept that the API will be slower when suppression is enabled

[elasticmachine]

Pinging @elastic/response-ops (Team:ResponseOps)

[mikecote]

cc @heespi this is the GitHub issue we'll use to remove the usages of refresh: true from the rule registry.