Drop v21.06

.gitlab-ci.yml

@@ -44,17 +44,6 @@ upstream-compat-master:
     paths:
     - "*.check-passed"
 
-upstream-compat-v21.06:
-  stage: check
-  <<: *only-default
-  allow_failure: true
-  script:
-  - ./test_upstream_compat_setup.sh "v21.06"
-  artifacts:
-    when: always
-    paths:
-      - "*.check-passed"
-
 upstream-compat-v21.12:
   stage: check
   <<: *only-default