Update build image.

Signed-off-by: Dennis Huang <[email protected]>

.circleci/config.yml

@@ -42,7 +42,7 @@ commands:
 jobs:
   unit_test:
     docker:
-      - image: circleci/python:3.11.0a1
+      - image: circleci/python:3.10
 
     working_directory: ~/repo
 
@@ -80,7 +80,7 @@ jobs:
 
   verify_image_list:
     docker:
-      - image: circleci/python:3.11.0a1
+      - image: circleci/python:3.10
 
     working_directory: ~/repo
 
@@ -162,7 +162,7 @@ jobs:
     docker:
       # specify the version you desire here
       # use `-browsers` prefix for selenium tests, e.g. `3.6.1-browsers`
-      - image: circleci/python:3.11.0a1
+      - image: circleci/python:3.10
 
       # Specify service dependencies here if necessary
       # CircleCI maintains a library of pre-built images