fix: fix IAM permissions config

[ocofaigh]

Description

Fix for https://github.ibm.com/ibmcloud/content-catalog/issues/5610

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[ocofaigh]

/run pipeline

[terraform-ibm-modules-ops]

🎉 This PR is included in version 4.4.1 🎉

The release is available on:

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• v4.4.1

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