Merge branch 'jennli-silence-112-error' into 'master'

Do not alert Slack for 112 exit code

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/177922



Merged-by: David Dieulivol <ddieulivol@gitlab.com>
Approved-by: David Dieulivol <ddieulivol@gitlab.com>
Co-authored-by: Jennifer Li <jli@gitlab.com>

scripts/rspec_helpers.sh

@@ -223,7 +223,6 @@ function change_exit_code_if_applicable() {
     alert_job_in_slack $new_exit_code "Known infra error caused this job to fail"
   elif [[ $found_known_flaky_test -ne $previous_exit_status ]]; then
     new_exit_code=$found_known_flaky_test
-    alert_job_in_slack $new_exit_code "A Known flaky test caused this job to fail"
   fi
 
   echo "New exit code: $new_exit_code"