aws-dynamodb: TableV2 with DynamoEventSource triggers deprecated TableGrantsProps#policyResource and #encryptedResource warnings during synth

Describe the bug

Using TableV2 with dynamo_stream=StreamViewType.NEW_IMAGE and attaching a DynamoEventSource to a Lambda produces deprecation warnings during cdk synth. The warnings originate inside CDK's own grantStreamRead() call — not from user code. There is no way to avoid them from user-land.

doing cdk synth leads to warnings:

Regression Issue

• Select this option if this issue appears to be a regression.

Last Known Working CDK Library Version

No response

Expected Behavior

No deprecation warnings when using only supported, non-deprecated APIs.

Current Behavior

Warnings appear once per TableV2 instance that has a DynamoEventSource attached.

Reproduction Steps

table = dynamodb.TableV2(
    self, "MyTable",
    partition_key=dynamodb.Attribute(name="pk", type=dynamodb.AttributeType.STRING),
    dynamo_stream=dynamodb.StreamViewType.NEW_IMAGE,
    billing=dynamodb.Billing.on_demand(),
)

fn.add_event_source(
    lvs.DynamoEventSource(
        table=table,
        starting_position=lbd.StartingPosition.LATEST,
    )
)



### Possible Solution

Root cause (suspected by claude :-))
DynamoEventSource.bind() internally calls table.grantStreamRead(), which constructs TableGrantsProps with the deprecated policyResource and encryptedResource fields. This is CDK-internal usage; user code cannot influence it.

### Additional Information/Context

#### WARNING OUTPUT:

[WARNING] aws-cdk-lib.aws_dynamodb.TableGrantsProps#policyResource is deprecated.
  - Leave this field undefined. A best-effort attempt will be made to discover a resource policy and add permissions to it.
  This API will be removed in the next major release.
[WARNING] aws-cdk-lib.aws_dynamodb.TableGrantsProps#encryptedResource is deprecated.
  - Leave this field undefined. If the table is encrypted with a customer-managed KMS key, appropriate grants to the key will be automatically added.
  This API will be removed in the next major release.

### AWS CDK Library version (aws-cdk-lib)

2.242.0

### AWS CDK CLI version

2.1110.0 (build 970da46)

### Node.js Version

2.242.0

### OS

Linux TRANSDEV 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5 00:21:55 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

### Language

Python

### Language Version

3.13.9

### Other information

_No response_