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.bigtable.BigtableCreateInstanceOperator",
        "airflow.contrib.operators.gcp_bigtable_operator.BigtableInstanceCreateOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigtable.BigtableDeleteInstanceOperator",
        "airflow.contrib.operators.gcp_bigtable_operator.BigtableInstanceDeleteOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigtable.BigtableCreateTableOperator",
        "airflow.contrib.operators.gcp_bigtable_operator.BigtableTableCreateOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.bigtable.BigtableDeleteTableOperator",
        "airflow.contrib.operators.gcp_bigtable_operator.BigtableTableDeleteOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.cloud_build.CloudBuildCreateBuildOperator",
        "airflow.contrib.operators.gcp_cloud_build_operator.CloudBuildCreateBuildOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.compute.ComputeEngineBaseOperator",
        "airflow.contrib.operators.gcp_compute_operator.GceBaseOperator",
    ),
    (
        "airflow.providers.google.cloud.operators.compute"
        ".ComputeEngineInstanceGroupUpdateManagerTemplateOperator",
        "airflow.contrib.operators.gcp_compute_operator.GceInstanceGroupManagerUpdateTemplateOperator",
    ),