.circleci: update to new image

This should also serve as a test that the CI pipeline is working and
whether I have permissions.

.circleci/config.yml

@@ -4,7 +4,7 @@ defaults: &defaults
  HYPOTHESIS_PROFILE: ci
  NODE_ENV: test
  docker:
- - image: circleci/python:2-node-browsers
+ - image: cimg/python:3.10-browsers
 version: 2
 jobs:
  upload-codeclimate:
@@ -54,6 +54,10 @@ jobs:
  pipenv sync --dev
  - run:
  name: Run tests
+ environment:
+ # Copied from docker-compose.yml, I am pretty sure that this is
+ # meaningless.
+ SECRET_KEY: 'fyq9-o@ky!j*xx0y2mpyi92&wpbbjgo%z1@vrmzk18hpje+%x'
  command: |
  mkdir -p test-results/nose codeclimate/
  ./cc-test-reporter before-build