remove py3.11 tests since not release yet, full tag names

.gitlab-ci.yml

@@ -33,7 +33,7 @@ stages:
 
 .quality-template: &quality
   <<: *install-deps
-  image: python:3.9
+  image: python:3.9-slim-bullseye
   stage: quality
   allow_failure: true
 
@@ -52,22 +52,18 @@ run-pre-commit:
 
 python3.9:
   <<: *test
-  image: python:3.9
+  image: python:3.9-slim-bullseye
 
 python3.10:
   <<: *test
-  image: python:3.10
-
-python3.11:
-  <<: *test
-  image: python:3.11
+  image: python:3.10-slim-bullseye
 
 # Publish jobs
 
 publish:
   <<: *install-deps
   stage: publish
-  image: python:3.10
+  image: python:3.10-slim-bullseye
   only:
     - /^v(\d+\.)(\d+\.)(\d+)$/
   script: