Update cimg/python Docker tag to v3.12.4 (#135)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| cimg/python | docker | patch | `3.12.3` -> `3.12.4` |

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.circleci/config.yml

@@ -7,7 +7,7 @@ orbs:
 executors:
  python:
  docker:
- - image: cimg/python:3.12.3
+ - image: cimg/python:3.12.4
  python-machine:
  machine:
  docker_layer_caching: true