feat(ec2): support for m6in, m6idn, r6in and r6idn instance types in aws-ec2

[tam0ri]

The M6in, M6idn, R6in and R6idn instance types were introduced in November 2022.
The instance types are supported in CloudFormation.

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[aws-cdk-automation]

The pull request linter has failed. See the aws-cdk-automation comment below for failure reasons. If you believe this pull request should receive an exemption, please comment and provide a justification.

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[tam0ri]

Exemption Request: This PR is similar to #27639, which didn't need changes to the README and tests.

[msambol]

LGTM.

[scanlonp]

Thanks!

✅ Updated pull request passes all PRLinter validations. Dismissing previous PRLinter review.

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[aws-cdk-automation]

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• Commit ID: 72b9dba
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[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).