fix: use serverless views in case of a Multi-AZ provisioned cluster

[sweco]

This fixes support for Multi-AZ provisioned clusters where the svv_schema_quota_state system view does not work but the variant used for serverless workgroups does (svv_redshift_schema_quota).

You can't use STL, SVCS, SVL, SVV, STV views with Multi-AZ deployments as they only support system monitoring views (SYS_* views). Change your monitoring queries to use system monitoring views (SYS_* views). (AWS docs)

[StevenKGER]

Thanks for the PR! :)

[mmichaelb]

Thank you for your contribution! I will try to release a version during the course of the day.

[mmichaelb]

released, see https://github.com/dbsystel/terraform-provider-redshift/releases/tag/v0.3.0