feat: Add region Zurich

[sylwit]

what

This PR adds a missing region. Zurich in eu-central-2 with 3 AZ

why

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references

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[Nuru]

@sylwit Thank you for this PR. You got us to notice we had missed some announcements, which got us to update this module in #26, That update includes the changes you made here, so we are closing this PR.