BUILD-2475 Cirrus-ci task name are too long (#7680)

* Define a name pattern instead of letting cirrus generating it
  That way it is more concise
* Add alias
  That way this task can still be retrieved via depend_on

.cirrus.yml

@@ -289,6 +289,8 @@ qa_task:
     memory: 7Gb
     additional_containers:
       - <<: *POSTGRES_ADDITIONAL_CONTAINER_TEMPLATE
+  name: QA $QA_CATEGORY
+  alias: qa
   env:
     matrix:
       # QA name should not exceed 13 characters to be properly reported on wallboard by burgr