chore(deps): update docker images: Bump docker/library/python

Bumps docker/library/python from `589ed66` to `a4b2b11`.

---
updated-dependencies:
- dependency-name: docker/library/python
  dependency-version: a4b2b11a9faf847c52ad07f5e0d4f34da59bad9d8589b8f2c476165d94c6b377
  dependency-type: direct:production
...

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

Author: dependabot[bot]

samples/document-explorer/client_app/Dockerfile

@@ -1,5 +1,5 @@
 #syntax=docker/dockerfile:1.4
-FROM public.ecr.aws/docker/library/python@sha256:589ed6659c0e4aac182f309131cd35e85452d21072570b1f6abc45b7687093a3
+FROM public.ecr.aws/docker/library/python@sha256:a4b2b11a9faf847c52ad07f5e0d4f34da59bad9d8589b8f2c476165d94c6b377
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get -y install procps && apt-get clean && rm -rf /var/lib/apt/lists/*