Update resource type for CosmosDB

[giovanadanieles]

Microsoft.AzureCosmosDB/databaseAccounts seems to be the wrong resource type for CosmosDB PEs. We've been extensively using Microsoft.DocumentDb/databaseAccounts instead, as this works as expected.

[prmerger-automator]

@giovanadanieles : Thanks for your contribution! The author(s) have been notified to review your proposed change. @abell

[giovanadanieles]

small addition: official docs also seem to point towards Microsoft.DocumentDb

[learn-build-service-prod]

Learn Build status updates of commit 63ab832:

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[ttorble]

@AbdullahBell

Can you review the proposed changes?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[Stacyrch140]

@AbdullahBell

Can you review the proposed changes?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[PMEds28]

I sent an email to the content owner today.

@MicrosoftDocs/public-repo-pr-review-team