**Description**

Currently we have an operator, S3KeySensor which polls for the given prefix in the bucket. At times, there is need to poll for multiple prefixes in given bucket in one go. To have that - I propose to have a S3MultipleKeysSensor, which would poll for multiple prefixes in the given bucket in one go.

**Use case / motivation**

To make it easier for users to poll multiple S3 prefixes in a given bucket.

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

Yes, I have an implementation ready for that.

**Related Issues**

NA

airflow/providers/amazon/aws/sensors/s3_prefix.py
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from typing import Optional, Union
from airflow.providers.amazon.aws.hooks.s3 import S3Hook
from airflow.sensors.base import BaseSensorOperator
class S3PrefixSensor(BaseSensorOperator):