Bump python from 3.11.0-alpine to 3.12.6-alpine

Bumps python from 3.11.0-alpine to 3.12.6-alpine.

---
updated-dependencies:
- dependency-name: python
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.11.0-alpine
+FROM python:3.12.6-alpine
 
 WORKDIR /shreddit
 COPY requirements.txt ./