[CDN][2024-09-01] Small Fix for id format and object type

[ChenglongLiu]

ARM (Control Plane) API Specification Update Pull Request

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Purpose of this PR

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• [ ] New resource provider.
• [ ] New API version for an existing resource provider. (If API spec is not defined in TypeSpec, the PR should have been created in adherence to OpenAPI specs PR creation guidance).
• [ ] Update existing version for a new feature. (This is applicable only when you are revising a private preview API version.)
• [ ] Update existing version to fix OpenAPI spec quality issues in S360.
• [ ] Convert existing OpenAPI spec to TypeSpec spec (do not combine this with implementing changes for a new API version).
• [x] Other, please clarify:
  • Added missing "type": "object" for resource
  • Added missing for "format": "arm-id" for resoruce id

Due diligence checklist

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• [x] I confirm this PR is modifying Azure Resource Manager (ARM) related specifications, and not data plane related specifications.
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Additional information

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Generated ApiView

Language	Package Name	ApiView Link
Go	sdk/resourcemanager/cdn/armcdn	https://apiview.dev/Assemblies/Review/5e345519a8864b018f9aae9fb7ba934c?revisionId=28e940d632ec4700829a3b29b2fa75bd
JavaScript	@azure/arm-cdn	https://apiview.dev/Assemblies/Review/d03c7f4c0d164abd85030a921f78f9ad?revisionId=45aa9437664b4bb5a341176c583e53fd
Java	azure-resourcemanager-cdn-generated	https://apiview.dev/Assemblies/Review/a857fa609d3c43b09808544a49c0693b?revisionId=3bb35127dc3a438e883e0b2611a8ea99

[azure-sdk]

API change check

APIView has identified API level changes in this PR and created following API reviews.

Microsoft.Cdn

[ChenglongLiu]

/azp run

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