Bump CBR and provider to unblock renovate pipeline

[shemau]

Affected modules

| terraform-ibm-modules/cbr/ibm (source) | module | minor | 1.27.0 -> 1.28.1 |

Requires the whole module to bump to IBM Provider 1.70.0

Terraform CLI and Terraform provider versions

• Terraform version:
• Provider version:

Terraform output

Debug output

Expected behavior

Actual behavior

Steps to reproduce (including links and screen captures)

1. Run terraform apply

Anything else

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[shemau]

Addressed in #339