Bump debian from bookworm-20251117 to bookworm-20251208 in /.github/docker#2141

pkwarren merged 1 commit intomainbufbuild/plugins:mainfrom

dependabot/docker/dot-github/docker/debian-bookworm-20251208bufbuild/plugins:dependabot/docker/dot-github/docker/debian-bookworm-20251208Copy head branch name to clipboard