[SQL] Add tests for Mi Hybrid Link

[ostojicb]

"Mi Hybrid Link" refers to these two APIs:

• ServerTrustCertificates
• DistributedAvailabilityGroups

This PR originally included generated files, but they were picked up and merged with another PR (#27036)

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  [SQL] Add Mi Hybrid Link apis to V5 SDK tag azure-rest-api-specs#17308
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[ostojicb]

Hi @fengzhou-msft, can you take a look?

[fengzhou-msft]

I don't see updates in generated SDK code. Is it in another PR and already merged?

[ostojicb]

Is it in another PR and already merged?

You're right, looks like it got merged yesterday with this PR: #27036

Will rename this PR to reflect only the added tests