test: update python version

Signed-off-by: zhuwenxing <[email protected]>

tests/docker/Dockerfile

@@ -9,7 +9,7 @@
 # is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 # or implied. See the License for the specific language governing permissions and limitations under the License.
 
-FROM python:3.8-buster
+FROM python:3.10-buster
 
 RUN apt-get update && apt-get install -y jq