### 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_
self, context: RequestContext, global_table_name: TableName
    ) -> DescribeGlobalTableOutput:
        details = DynamoDBRegion.GLOBAL_TABLES.get(global_table_name)
        if not details:
            raise GlobalTableNotFoundException("Global table with this name does not exist")
        return DescribeGlobalTableOutput(GlobalTableDescription=details)
    def list_global_tables(
        self,
        context: RequestContext,
        exclusive_start_global_table_name: TableName = None,
        limit: PositiveIntegerObject = None,
        region_name: RegionName = None,
    ) -> ListGlobalTablesOutput:
        
        result = [
            select_attributes(tab, ["GlobalTableName", "ReplicationGroup"])
            for tab in DynamoDBRegion.GLOBAL_TABLES.values()
        ]
        return ListGlobalTablesOutput(GlobalTables=result)
    def update_global_table(