chore: bump tf code used in tests to require tf >= 1.9.0

[ocofaigh]

Description

Part of an overall effort to move to tf 1.9.
I also renamed the readme to caps (so it shows in UI preview)

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[ocofaigh]

/run pipeline

[ocofaigh]

The failure here is due to a known projects issue where it was marked as failure when it actually didnt fail. Suggest to force merge this as the change is unrelated to anything in the stack

[terraform-ibm-modules-ops]

🎉 This PR is included in version 2.2.0 🎉

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• v2.2.0

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