Mark elasticstack_kibana_action_connector.secrets as sensitive

[henrikno]

Mark secrets in elasticstack_kibana_action_connector as sensitive.

[wandergeek]

Thanks for your contribution!
LGTM if you can get those tests passing. 👌

[henrikno]

        Error: Unexpected status code from server: got HTTP 404
        
          with elasticstack_fleet_integration.test_integration,
          on terraform_plugin_test.tf line 7, in resource "elasticstack_fleet_integration" "test_integration":
           7: resource "elasticstack_fleet_integration" "test_integration" {
        
        {"statusCode":404,"error":"Not Found","message":"[sysmon_linux] package not
        found in registry"}

Seems unrelated to this, and all other PRs are failing with the same issue.

[tobio]

Thanks @henrikno, are you able to add an entry to CHANGELOG.md for this one.

[tobio]

Seems unrelated to this, and all other PRs are failing with the same issue.

Yep, this looks like either a breaking change in 9.0, or an issue with the release. I'll open an issue for it, we shouldn't block this PR on those tests.