Update docker.io/library/debian Docker tag to v12.11

Author: Renovate

Dockerfile

@@ -2,7 +2,7 @@
 ## Download shellcheck
 ##
 
-FROM docker.io/library/debian:12.10-slim@sha256:4b50eb66f977b4062683ff434ef18ac191da862dbe966961bc11990cf5791a8d AS build
+FROM docker.io/library/debian:12.11-slim@sha256:90522eeb7e5923ee2b871c639059537b30521272f10ca86fdbbbb2b75a8c40cd AS build
 SHELL ["/bin/bash", "-u", "-e", "-o", "pipefail", "-c"]
 RUN --mount=type=cache,target=/var/lib/apt/lists,sharing=locked \
 	apt-get -qq update && \