### Apache Airflow Provider(s)

snowflake

### Versions of Apache Airflow Providers

4.0.3

### Apache Airflow version

2.5.0

### Operating System

docker/linux

### Deployment

Astronomer

### Deployment details

Normal Astro CLI

### What happened

```
>>> SnowflakeOperator(
    ...,
    do_xcom_push=False
).execute()


ERROR - Task failed with exception
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/airflow/providers/common/sql/operators/sql.py", line 272, in execute
    return self._process_output([output], hook.descriptions)[-1]
  File "/usr/local/lib/python3.9/site-packages/airflow/providers/snowflake/operators/snowflake.py", line 118, in _process_output
    for row in result_list:
TypeError: 'NoneType' object is not iterable
```

### What you think should happen instead

XCom's should be able to be turned off

### How to reproduce
1) 
```
astro dev init
```
2) `dags/snowflake_test.py`
```
import os
from datetime import datetime

from airflow import DAG
from airflow.providers.snowflake.operators.snowflake import SnowflakeOperator

os.environ["AIRFLOW_CONN_SNOWFLAKE"] = "snowflake://......."

with DAG('snowflake_test', schedule=None, start_date=datetime(2023, 1, 1)):
    SnowflakeOperator(
        task_id='snowflake_test',
        snowflake_conn_id="snowflake",
        sql="select 1;",
        do_xcom_push=False
    )
```
3) 
```
astro run -d dags/snowflake_test.py snowflake_test
```
```
Loading DAGs...
Running snowflake_test... [2023-02-17 18:45:33,537] {connection.py:280} INFO - Snowflake Connector for Python Version: 2.9.0, Python Version: 3.9.16, Platform: Linux-5.15.49-linuxkit-aarch64-with-glibc2.31
...
[2023-02-17 18:45:34,608] {cursor.py:727} INFO - query: [select 1]
[2023-02-17 18:45:34,698] {cursor.py:740} INFO - query execution done
...
[2023-02-17 18:45:34,785] {connection.py:581} INFO - closed
[2023-02-17 18:45:34,841] {connection.py:584} INFO - No async queries seem to be running, deleting session
FAILED
  'NoneType' object is not iterable
```

### Anything else

_No response_

### Are you willing to submit PR?

- [x] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

"""Check if BranchSQLOperator throws an exception for invalid connection"""
        op = BranchSQLOperator(
            task_id="make_choice",
            conn_id="invalid_connection",
            sql="SELECT count(1) FROM INFORMATION_SCHEMA.TABLES",
            follow_task_ids_if_true="branch_1",
            follow_task_ids_if_false="branch_2",
            dag=self.dag,
        )
        with pytest.raises(AirflowException):
            op.run(start_date=DEFAULT_DATE, end_date=DEFAULT_DATE, ignore_ti_state=True)
    def test_invalid_follow_task_true(self):
        """Check if BranchSQLOperator throws an exception for invalid connection"""
        op = BranchSQLOperator(
            task_id="make_choice",
            conn_id="invalid_connection",
            sql="SELECT count(1) FROM INFORMATION_SCHEMA.TABLES",
            follow_task_ids_if_true=None,
            follow_task_ids_if_false="branch_2",
            dag=self.dag,
        )
        with pytest.raises(AirflowException):
            op.run(start_date=DEFAULT_DATE, end_date=DEFAULT_DATE, ignore_ti_state=True)
    def test_invalid_follow_task_false(self):