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.providers.amazon.aws.hooks.sqs.SQSHook",
        "airflow.contrib.hooks.aws_sqs_hook.SQSHook",
    ),
    (
        "airflow.providers.amazon.aws.hooks.lambda_function.AwsLambdaHook",
        "airflow.contrib.hooks.aws_lambda_hook.AwsLambdaHook",
    ),
    (
        "airflow.providers.amazon.aws.hooks.sns.AwsSnsHook",
        "airflow.contrib.hooks.aws_sns_hook.AwsSnsHook",
    ),
    (
        'airflow.providers.apache.pinot.hooks.pinot.PinotDbApiHook',
        'airflow.contrib.hooks.pinot_hook.PinotDbApiHook',
    ),
    (
        'airflow.providers.apache.pinot.hooks.pinot.PinotAdminHook',
        'airflow.contrib.hooks.pinot_hook.PinotAdminHook',
    ),
    (
        'airflow.providers.apache.spark.hooks.spark_jdbc.SparkJDBCHook',
        'airflow.contrib.hooks.spark_jdbc_hook.SparkJDBCHook',
    ),
    (
        'airflow.providers.apache.spark.hooks.spark_sql.SparkSqlHook',
        'airflow.contrib.hooks.spark_sql_hook.SparkSqlHook',
    ),
    (
        'airflow.providers.apache.spark.hooks.spark_submit.SparkSubmitHook',
        'airflow.contrib.hooks.spark_submit_hook.SparkSubmitHook',