(DOCSP-44484) Update 3rd party service deprecation date

[krollins-mdb]

Pull Request Info

Update third-party service deprecation date to match HTTPS Endpoints deprecation date. Also, add some deprecation labels to top-level pages to help make it clearer at a glance what is deprecated.

Jira ticket: https://jira.mongodb.org/browse/DOCSP-44484

Staging Links

data-api

data-api/custom-endpoints

data-api/generated-endpoints

index

sync

• Third-party service. Each of the pages in this section have an important note about the deprecation. The date in the deprecation note has been updated.

Review Guidelines

REVIEWING.md

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