Bump python from 3.9-slim to 3.12-slim

Bumps python from 3.9-slim to 3.12-slim.

---
updated-dependencies:
- dependency-name: python
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-slim
+FROM python:3.12-slim
 EXPOSE 5555
 
 COPY requirements.txt /app/requirements.txt