Update UltraDNS SDK to v1.3.7

[Volatus]

Description
This PR updates the SDK for UltraDNS as it was outdated by over 2 years. Seems to build and tests pass just fine.
May help issues like #2780 that may be caused by an update to the UltraDNS API which is now v3.

Fixes #2780

Checklist

• Unit tests updated
• End user documentation updated

[k8s-ci-robot]

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[Volatus]

/kind bug

[Volatus]

/ok-to-test

[k8s-ci-robot]

@Volatus: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

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/ok-to-test

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[Volatus]

/assign @njuettner

[Volatus]

/hold

It looks like it may be necessary to swap to the new SDK provided by UltraDNS.

[Volatus]

/close

[k8s-ci-robot]

@Volatus: Closed this PR.

In response to this:

/close

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