internal/provider: add a new cockroach_private_endpoint_trusted_owner resource

[jaylim-crl]

NOTE: This PR depends on the following:

• [x] Wait for a new CC production release
• [x] Merge https://github.com/cockroachdb/cockroach-cloud-sdk-go/pull/41
• [x] Release a new version of cockroach-cloud-sdk-go (https://github.com/cockroachdb/cockroach-cloud-sdk-go/pull/42)
• [x] Import that new version into terraform-provider-cockroach (https://github.com/cockroachdb/terraform-provider-cockroach/pull/160)

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internal/provider: add a new cockroach_private_endpoint_trusted_owner resource

This commit adds a new cockroach_private_endpoint_trusted_owner terraform resource to manage private endpoint trusted owner entries.

docs: update docs to include cockroach_private_endpoint_connection

This commit updates the docs to include the new cockroach_private_endpoint_connection resource. At the same time, we add an example for such a resource, and update the CHANGELOG file as well.

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Commit checklist

• [X] Changelog
• [X] Doc gen (make generate)
• [X] Integration test(s)
• [X] Acceptance test(s)
• [X] Example(s)

[jaylim-crl]

Ran the acceptance tests against staging:

$ TF_ACC=1 go test -test.v -run TestAccDedicatedPrivateEndpointTrustedOwnerResource -timeout 120m -parallel 100 ./internal/provider/
=== RUN   TestAccDedicatedPrivateEndpointTrustedOwnerResource
--- PASS: TestAccDedicatedPrivateEndpointTrustedOwnerResource (1291.43s)
PASS
ok      github.com/cockroachdb/terraform-provider-cockroach/internal/provider   1291.787s

We'd have to flip the feature flag on the right production org before releasing a new provider version.

[jaylim-crl]

TFTR!