aws.XXX options are not recognized in SQL API for CREATE EXTERNAL TABLE with AWS S3 location

**Describe the bug**
Hi

I was trying to create external table from AWS S3 using examples from [Datafusion CLI docs](https://datafusion.apache.org/user-guide/cli/datasources.html#s3) and [SQL DDL docs](https://datafusion.apache.org/user-guide/sql/ddl.html#create-external-table), see **To Reproduce** section below. But looks like AWS-specific options for external tables doesn't work with SQL API in the same way as it described in CLI docs

```Exception: DataFusion error: Configuration("Could not find config namespace \"aws\"")```

I can successfully register and read the same parquet with the same credentials via register_object_store + register_parquet functions, so there's no problem with the data or S3 connection

**To Reproduce**
```python
import datafusion

ctx = datafusion.SessionContext()

raw_data_df = ctx.sql(f"""
create external table raw_data
stored as parquet
options
(
'aws.access_key_id' '***',
'aws.secret_access_key' '***',
'aws.region' 'eu-central-1'
)
location 's3://some-bucket/some-folder/'
""")

raw_data_df.show()
```

**Expected behavior**
```create external table``` command works with ```aws.xxx``` options

**Additional context**
v 42.0.0

先執行使用 AWS 選項的 CREATE EXTERNAL TABLE 已回報 Python 重現，然後將其與 issue 中描述的可正常運作的 register_object_store 和 register_parquet 路徑進行比較。完成的標準是 SQL API 接受 aws.xxx 選項，並且能夠讀取相同的 S3 parquet 位置，這正是 DataFusion 42.0.0 的預期行為。

由索引模型根據 Issue 內容生成。