move the autodeploy ci to bullseye

Signed-off-by: Mattia Rizzolo <mattia@debian.org>

.gitlab-ci.yml

@@ -20,14 +20,22 @@
 # the test named "tests" is the one that is checked when doing autodeployment.
 tests:
   <<: *test
-  image: debian:buster-backports
-  variables:
-    ADDITIONAL_PACKAGES: python3-django/buster-backports
+  only:
+    - master
+  image: debian:bullseye
+#  variables:
+#    ADDITIONAL_PACKAGES: python3-django/buster-backports
 
 tests bullseye:
   <<: *test
+  except:
+    - master
   image: debian:bullseye
 
+tests bookworm:
+  <<: *test
+  image: debian:bookworm
+
 test unstable:
   <<: *test
   image: debian:unstable