Bump python from 3.11.8-alpine3.18 to 3.12.3-alpine3.18

Bumps python from 3.11.8-alpine3.18 to 3.12.3-alpine3.18.

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

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

Dockerfile

@@ -52,7 +52,7 @@ RUN pipenv sync --clear --verbose
 
 # The version of Python used here should match the version of the Alpine
 # python3 package installed in the compile-stage.
-FROM python:3.11.8-alpine3.18 AS build-stage
+FROM python:3.12.3-alpine3.18 AS build-stage
 
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 # For a list of pre-defined annotation keys and value types see: