fix(logs): DataProtectionPolicy not displaying properly in console

[cam8001]

Issue # (if applicable)

Closes #26728.

Reason for this change

• CloudFormation property names should be PascalCased
• the DataProtectionPolicy construct in aws-logs generates properties with camelCased property names
  • for example, dataIdentifier instead of DataIdentifier
• Properties with camelCased property names are not recognised by CloudFormation, and so the configuration is not applied.

Description of changes

I have tried to sort this by explicitly specifying the keys in an object in the generation of the CfnLogGroup in log-group.ts.

I'm not sure if I need to go one level deeper to do the same for Statement, but the docs suggest so. It feels a little hacky to do ever deeper explicit specification of keys - if anyone else has any suggestions for a better approach, I'm very open to it!

Description of how you validated changes

Updated tests in loggroup.test.ts

Checklist

• [*] My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

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