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.google.cloud.operators.bigquery.BigQueryCreateExternalTableOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryCreateExternalTableOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryDeleteDatasetOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryDeleteDatasetOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryGetDatasetOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryGetDatasetOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryGetDatasetTablesOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryGetDatasetTablesOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryPatchDatasetOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryPatchDatasetOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryUpdateDatasetOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryUpdateDatasetOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryUpsertTableOperator",
        "airflow.contrib.operators.bigquery_operator.BigQueryUpsertTableOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigquery.BigQueryCheckOperator",