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**Description**

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Make `MongoToS3Operator` `mongo_collection` parameter templated.

**Use case / motivation**

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This would allow for passing a templated mongo collection from other tasks, such as a mongo collection used as data destination by using `S3Hook`. For instance, we could use templated mongo collection to write data for different dates in different collections by using: `mycollection.{{ ds_nodash }}`.

**Are you willing to submit a PR?**

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Yes.

**Related Issues**

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N/A

airflow/providers/amazon/aws/transfers/mongo_to_s3.py
self,
        *,
        mongo_conn_id: str,
        s3_conn_id: str,
        mongo_collection: str,
        mongo_query: Union[list, dict],
        s3_bucket: str,
        s3_key: str,
        mongo_db: Optional[str] = None,
        replace: bool = False,
        **kwargs,
    ) -> None:
        super().__init__(**kwargs)
        
        self.mongo_conn_id = mongo_conn_id
        self.s3_conn_id = s3_conn_id
        
        self.mongo_db = mongo_db
        self.mongo_collection = mongo_collection
        
        self.mongo_query = mongo_query
        self.is_pipeline = isinstance(self.mongo_query, list)
        
        self.s3_bucket = s3_bucket
        self.s3_key = s3_key
        self.replace = replace
    def execute(self, context) -> bool: