chore(deps): update debian:stable-slim docker digest to a771c85 (#689)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Dockerfile

@@ -4,7 +4,7 @@ FROM ghcr.io/astral-sh/uv:0.9.4@sha256:c4089b0085cf4d38e38d5cdaa5e57752c1878a6f4
 ##
 # base
 ##
-FROM debian:stable-slim@sha256:d6743b7859c917a488ca39f4ab5e174011305f50b44ce32d3b9ea5d81b291b3b AS base
+FROM debian:stable-slim@sha256:a771c85b2287eae7ce8fe0a4c2637d575c5d991555ae680c187c5572153648d9 AS base
 
 # set up user
 ARG USER=user