Use Debian bullseye for our hardened build.

12b64845 · Alexander Hansen Færøy · 84d6f977 · 12b64845
Commit 12b64845 authored 3 years ago by Alexander Hansen Færøy
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -117,7 +117,7 @@ debian-minimal:
 #
 # TODO: This will be faster once we merge #40098 and #40099.
 debian-hardened:
-  image: debian:testing
+  image: debian:bullseye
  <<: *debian-template
  variables:
    ALL_BUGS_ARE_FATAL: "yes"