build(deps): bump debian in the docker-images group across 1 directory

Bumps the docker-images group with 1 update in the / directory: debian.


Updates `debian` from `4724b8c` to `f9c6a2f`

---
updated-dependencies:
- dependency-name: debian
  dependency-version: bookworm-slim
  dependency-type: direct:production
  dependency-group: docker-images
...

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

Author: dependabot[bot]

Dockerfile.sandbox

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.7
 
-FROM debian:bookworm-slim@sha256:4724b8cc51e33e398f0e2e15e18d5ec2851ff0c2280647e1310bc1642182655d
+FROM debian:bookworm-slim@sha256:f9c6a2fd2ddbc23e336b6257a5245e31f996953ef06cd13a59fa0a1df2d5c252
 
 ENV DEBIAN_FRONTEND=noninteractive
 

Dockerfile.sandbox-browser

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.7
 
-FROM debian:bookworm-slim@sha256:4724b8cc51e33e398f0e2e15e18d5ec2851ff0c2280647e1310bc1642182655d
+FROM debian:bookworm-slim@sha256:f9c6a2fd2ddbc23e336b6257a5245e31f996953ef06cd13a59fa0a1df2d5c252
 
 ENV DEBIAN_FRONTEND=noninteractive