Update m365-dr-overview.md

[msbemba]

trafficstars

Changed the URL for Azure data residency

Fixes https://github.com/MicrosoftDocs/microsoft-365-docs-pr/issues/23538

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

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[msbemba]

@JohanFreelancer9 Please copy review

[yogkumgit]

@kelleyvice-msft Please merge this PR. Thanks