ci: update the debian version

jordigh · jordigh · commit 2a561419b10a · 2025-01-10T14:46:47.000-05:00
This makes it match the current version we use in our grist-core Dockerfile.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -129,7 +129,7 @@ jobs:
         target:
           - linux/arm64
         variant:
-          - bullseye
+          - bookworm
           - alpine
         include:
           # musl x64 builds
