Update dns-records-for-office-365-gcc-high.md

[msbemba]

trafficstars

Added MS teams to the Document

Fixes https://github.com/MicrosoftDocs/microsoft-365-docs-pr/issues/23648

[msbemba]

@JohanFreelancer9 Please copy review

[learn-build-service-prod[bot]]

Learn Build status updates of commit 3045306:

:white_check_mark: Validation status: passed

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microsoft-365/enterprise/dns-records-for-office-365-gcc-high.md	:white_check_mark:Succeeded

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[yogkumgit]

@dzazzo-msft Please merge this PR. Thanks

[yogkumgit]

@dzazzo-msft Gentle reminder.