chore(deps): bump python in /docker/dev

Bumps python from 3.12.7-alpine3.20 to 3.13.0-alpine3.20.

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

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

docker/dev/Dockerfile

@@ -1,5 +1,5 @@
 # use latest python alpine image.
-FROM python:3.12.7-alpine3.20
+FROM python:3.13.0-alpine3.20
 
 # install system dependencies.
 RUN apk update && apk add --no-cache \