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/always/test_project_structure.py
with open(filepath) as py_file:
        content = py_file.read()
    doc_node = ast.parse(content, filepath)
    import_names: List[str] = []
    for current_node in ast.walk(doc_node):
        if not isinstance(current_node, (ast.Import, ast.ImportFrom)):
            continue
        for alias in current_node.names:
            name = alias.name
            fullname = f'{current_node.module}.{name}' if isinstance(current_node, ast.ImportFrom) else name
            import_names.append(fullname)
    return import_names
def filepath_to_module(filepath: str):
    filepath = os.path.relpath(os.path.abspath(filepath), ROOT_FOLDER)
    return filepath.replace("/", ".")[: -(len('.py'))]
def get_classes_from_file(filepath: str):
    with open(filepath) as py_file:
        content = py_file.read()
    doc_node = ast.parse(content, filepath)
    module = filepath_to_module(filepath)
    results: List[str] = []
    for current_node in ast.walk(doc_node):
        if not isinstance(current_node, ast.ClassDef):
            continue
        name = current_node.name
        if not name.endswith("Operator") and not name.endswith("Sensor") and not name.endswith("Operator"):
            continue
        results.append(f"{module}.{name}")
    return results
class TestGoogleProviderProjectStructure(unittest.TestCase):