IBMCloud: Cleanup errors use and other items

[cjschaef]

Cleanup the use of the deprecated errors package and other items in IBM Cloud code.

[openshift-ci]

Skipping CI for Draft Pull Request.
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You can still manually trigger a test run with /test all

[openshift-ci]

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[openshift-merge-robot]

PR needs rebase.

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[openshift-ci]

@cjschaef: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-aws-ovn	5634060	link	true	/test e2e-aws-ovn
ci/prow/e2e-aws-ovn-edge-zones-manifest-validation	5634060	link	true	/test e2e-aws-ovn-edge-zones-manifest-validation

Full PR test history. Your PR dashboard.

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[cjschaef]

I'm going to close this, as I don't expect to do additional work on Terraform besides fixes.