Extend support for 4 new Regions in AWS polling and metrics stream integration

[rkumarregar]

Added Support For 4 New Regions For AWS Polling and Metric Stream Integration

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[un-etudiant]

Minor Nits. Once done LGTM

[adutta-newrelic]

netlify build fork

[svc-docs-eng-opensource-bot]

✅ Your PR has been mirrored to our repository as PR #21860.
Commit: b01b7152a33aad73d51e706374e0c154aa868944 (b01b715)
Our workflows will run in the mirrored PR linked above.
🚀 If the build is successful, a Netlify preview will be available shortly at: https://rkumarregar-patch-1--docs-website-netlify.netlify.app

[adutta-newrelic]

LGTM