r/rum: Add platform support to aws_rum_app_monitor and new aws_rum_resource_policy resource

[gcpuser1]

Rollback Plan

If a change needs to be reverted, we will publish an updated version of the library.

Changes to Security Controls

No changes to security controls.

Description

This pull request introduces the following enhancements to the CloudWatch RUM (Real User Monitoring) service support:

1. platform argument for aws_rum_app_monitor:

   • Added support for the platform parameter (Web, iOS, or Android), defaulting to Web when not specified.
   • Enforced ForceNew: true as the AWS RUM API's UpdateAppMonitor does not support updating the platform.
   • Added TestAccRUMAppMonitor_Platform acceptance test to cover this field.
   • Updated documentation for aws_rum_app_monitor to detail this parameter.

2. New aws_rum_resource_policy resource:

   • Implemented CRUD support using the AWS SDK for Go v2 PutResourcePolicy, GetResourcePolicy, and DeleteResourcePolicy APIs.
   • Registered the new resource in the RUM service package.
   • Handled standard errors (ResourceNotFoundException and PolicyNotFoundException) gracefully during Read and Delete operations.
   • Added TestAccRUMResourcePolicy_basic acceptance test.
   • Added resource documentation under website/docs/r/rum_resource_policy.html.markdown.

Relations

Closes #48028

References

• CloudWatch RUM PutResourcePolicy API reference: https://docs.aws.amazon.com/cloudwatchrum/latest/APIReference/API_PutResourcePolicy.html

Output from Acceptance Testing

Acceptance tests were not executed locally due to the absence of AWS credentials in the environment. However, the package compiled and build/format/imports checks passed:

$ go build ./internal/service/rum
(successful, exit 0)

[github-actions]

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[github-actions]

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