Typo in Google Cloud Storage sensor: airflow/providers/google/cloud/sensors/gcs/GCSObjectsWithPrefixExistenceSensor

The word _With_ is spelled incorrectly. It should be: GCSObjects**With**PrefixExistenceSensor

**Apache Airflow version**: 2.0.0
**Environment**:
- **Cloud provider or hardware configuration**: Google Cloud
- **OS** (e.g. from /etc/os-release): Mac OS BigSur






tests/deprecated_classes.py
'airflow.contrib.operators.druid_operator.DruidOperator',
    ),
    (
        'airflow.providers.apache.spark.operators.spark_jdbc.SparkSubmitOperator',
        'airflow.contrib.operators.spark_jdbc_operator.SparkSubmitOperator',
    ),
    (
        'airflow.providers.apache.spark.operators.spark_sql.SparkSqlOperator',
        'airflow.contrib.operators.spark_sql_operator.SparkSqlOperator',
    ),
    (
        'airflow.providers.apache.spark.operators.spark_submit.SparkSubmitOperator',
        'airflow.contrib.operators.spark_submit_operator.SparkSubmitOperator',
    ),
    (
        'airflow.providers.apache.spark.operators.spark_jdbc.SparkJDBCOperator',
        'airflow.contrib.operators.spark_jdbc_operator.SparkJDBCOperator',
    ),
    (
        'airflow.providers.apache.sqoop.operators.sqoop.SqoopOperator',
        'airflow.contrib.operators.sqoop_operator.SqoopOperator',
    ),
    (
        'airflow.providers.apache.druid.operators.druid_check.DruidCheckOperator',
        'airflow.operators.druid_check_operator.DruidCheckOperator',
    ),
    (
        'airflow.providers.apache.hive.operators.hive.HiveOperator',
        'airflow.operators.hive_operator.HiveOperator',
    ),