chore(deps): update module github.com/terraform-ibm-modules/ibmcloud-terratest-wrapper to v1.78.6

[terraform-ibm-modules-ops]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/terraform-ibm-modules/ibmcloud-terratest-wrapper	v1.78.3 → v1.78.6

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Release Notes

terraform-ibm-modules/ibmcloud-terratest-wrapper (github.com/terraform-ibm-modules/ibmcloud-terratest-wrapper)

v1.78.6

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Bug Fixes

• resolve custom_config widget types to string (#​1183) (ddda064)
  • As part of this change the catalog inputs that use only custom_config.type (such as region and vpc_region) and do not define a top-level type are handled.
  • These inputs now correctly resolve to string, ensuring proper validation and consistent behavior between local catalog json and the live API.

v1.78.5

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Bug Fixes

• return error for invalid product or flavor name in readCatalogConfig (#​1182) (c31906c)

v1.78.4

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Bug Fixes

• return stack configuration errors instead of swallowing them (#​1175) (82547c4)

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[terraform-ibm-modules-dev]

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