resource/aws_redshift_cluster: Remove Optional from several Computed-only attributes

[gdavison]

Description

In the resource type aws_redshift_cluster, the following attributes are currently Optional, Computed, but should be Computed:

• cluster_public_key
• cluster_revision_number
• endpoint

Affected Resource(s) and/or Data Source(s)

aws_redshift_cluster

Potential Terraform Configuration

References

No response

Would you like to implement a fix?

None

[github-actions]

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