Do not retry jobs that are allowed to fail

The `ee_compat_check` job can take 10 minutes to run so it's a shame to
retry it and loose 10 minutes if it fails for a good reason.
Signed-off-by: Rémy Coutable <remy@rymai.me>

.gitlab-ci.yml

@@ -270,6 +270,7 @@ flaky-examples-check:
     NEW_FLAKY_SPECS_REPORT: rspec_flaky/${CI_PROJECT_NAME}/new_rspec_flaky_examples.json
   stage: post-test
   allow_failure: yes
+  retry: 0
   only:
     - branches
   except:
@@ -429,6 +430,7 @@ ee_compat_check:
     - branches@gitlab-org/gitlab-ee
     - branches@gitlab/gitlab-ee
   allow_failure: yes
+  retry: 0
   cache:
     key: "ee_compat_check_repo"
     paths: