fix(dynamodb): remove deprecated tablegrants props from tablev2

[josemfche]

Fixes #37221

Summary

Removes deprecated encryptedResource and policyResource props from TableGrants initialization in TableV2 and TableV2MultiAccountReplica. TableGrants already auto-discovers encryption keys and resource policies via EncryptedResources.of() / ResourceWithPolicies.of() when those props are omitted.

This stops JSII deprecation warnings triggered by the "encryptedResource" in p check even when the values are undefined.

Test plan

• Added regression tests in table-v2-base.test.ts covering:
  • JSII compiled path does not pass deprecated props
  • Explicit deprecated props still warn (control test)
  • DynamoEventSource stream grants preserved
  • CMK-encrypted table grantReadData still grants KMS via auto-discovery
• yarn test aws-dynamodb/test/ --coverage=false — 413/413 passed

Made with Cursor

[aws-cdk-automation]

(This review is outdated)

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

[josemfche]

Integration snapshot note for maintainers:

The integ.dynamodb-table-v2 snapshot was generated locally with yarn integ --dry-run --force because this account is not CDK-bootstrapped for live deploy. There is no expected CloudFormation output change from this PR (deprecation warning removal only).

When adding pr/needs-integration-tests-deployment, please regenerate the snapshot via the normal deploy workflow if preferred:

cd packages/@aws-cdk-testing/framework-integ
yarn integ --force aws-lambda-event-sources/test/integ.dynamodb-table-v2.js

Local snapshot verification passes (yarn integ aws-lambda-event-sources/test/integ.dynamodb-table-v2.js → UNCHANGED).

[aws-cdk-automation]

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