### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

I am receiving a ResourceNotFoundException when attempting to run a BatchGetItem operation on a table that exists.  Downgrading to `0.14.2` fixes the issue and I was not receiving this issue on Friday when running the `latest` container.  I am able to run `scan` and `query` requests successfully on these tables.

### Expected Behavior

BatchGetItem should work on tables that exist

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    docker run localstack/localstack

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

- `awslocal dynamodb create-table --table-name test-table --attribute-definitions AttributeName=PK,AttributeType=S --key-schema AttributeName=PK,KeyType=HASH --provisioned-throughput ReadCapacityUnits=1,WriteCapacityUnits=1`
- `awslocal dynamodb list-tables`
```
{
    "TableNames": [
        "test-table"
    ]
}
```
- `awslocal dynamodb batch-get-item --request-items '{ "test-table": { "Keys": [{ "PK": {"S": "test-key"} }] } }'`
```
An error occurred (ResourceNotFoundException) when calling the BatchGetItem operation: Cannot do operations on a non-existent table
```

### Environment

```markdown
- OS: 
- LocalStack: latest
```


### Anything else?

_No response_
latest_stream_arn = table.latest_stream_arn
        testutil.create_lambda_function(
            handler_file=TEST_LAMBDA_PYTHON_ECHO,
            func_name=function_name,
            runtime=LAMBDA_RUNTIME_PYTHON36,
        )
        lambda_client = aws_stack.create_external_boto_client("lambda")
        lambda_client.create_event_source_mapping(
            EventSourceArn=latest_stream_arn, FunctionName=function_name
        )
        item = {"SK": short_uid(), "Name": "name-{}".format(short_uid())}
        table.put_item(Item=item)
        events = retry(
            check_expected_lambda_log_events_length,
            retries=3,
            sleep=1,
            function_name=function_name,
            expected_length=1,
            regex_filter=r"Records",
        )
        assert len(events) == 1
        assert len(events[0]["Records"]) == 1
        dynamodb_event = events[0]["Records"][0]["dynamodb"]
        assert dynamodb_event["StreamViewType"] == "NEW_AND_OLD_IMAGES"
        assert dynamodb_event["Keys"] == {"SK": {"S": item["SK"]}}
        assert dynamodb_event["NewImage"]["Name"] == {"S": item["Name"]}
        assert "SequenceNumber" in dynamodb_event
        dynamodb = aws_stack.create_external_boto_client("dynamodb")
        dynamodb.delete_table(TableName=table_name)
    def test_dynamodb_batch_write_item(self):