Merge pull request #1664 from EliahKagan/run-ci/pure-rust-build

Bump Docker image to Debian 12 for `pure-rust-build`

Author: Byron

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ on:
 jobs:
   pure-rust-build:
     runs-on: ubuntu-latest
-    container: debian:buster
+    container: debian:bookworm
     steps:
       - uses: actions/checkout@v4
       - name: Prerequisites