Update diagram per cloud requirements

[bhakta-ibm]

Description

Updating arch diaram per cloud requirement

Release required?

• [ ] No release
• [x] Patch release (x.x.X)
• [ ] Minor release (x.X.x)
• [ ] Major release (X.x.x)

Release notes content

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Checklist for reviewers

• [ ] If relevant, a test for the change is included or updated with this PR.
• [ ] If relevant, documentation for the change is included or updated with this PR.

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