Update python:3.12-slim-bullseye Docker digest to 6229a3e (#53)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| python | final | digest | `0c99b18` -> `6229a3e` |

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Author: lettuce-bot[bot]

Dockerfile

@@ -1,5 +1,5 @@
 ### Use an appropriate version of Python
-FROM python:3.12-slim-bullseye@sha256:0c99b18d187b81a5c47fb3f71c1dac0c5a166ba76171409b117c2a89b0a0ddc4 AS python
+FROM python:3.12-slim-bullseye@sha256:6229a3e2fd625bb99efb87e38e7ca4aff6351636ce41b3f229f672b18be8134c AS python
 
 ENV DEBIAN_FRONTEND=noninteractive