Update `ruby3-sync` to `ruby2-sync`

.gitlab-ci.yml

@@ -24,13 +24,13 @@ gitlab:
   stage: sync
   extends: .rules
   variables:
-    REPOSITORY: "https://dummy:${RUBY3_SYNC_TOKEN}@gitlab.com/gitlab-org/gitlab.git"
+    REPOSITORY: "https://dummy:${RUBY2_SYNC_TOKEN}@gitlab.com/gitlab-org/gitlab.git"
     MERGE_FROM: "master"
-    MERGE_INTO: "ruby3"
+    MERGE_INTO: "ruby2"
     USER_EMAIL: "project278964_bot10@noreply.gitlab.com"
     USER_NAME: "project_278964_bot10"
   environment:
-    name: ruby3-sync
+    name: ruby2-sync
   before_script:
     - git clone --filter=tree:0 "${REPOSITORY}" "${CI_JOB_NAME}"
     - cd ${CI_JOB_NAME}
@@ -53,4 +53,4 @@ notify:
   script:
     - echo "NOTIFY_CHANNEL is ${NOTIFY_CHANNEL}"
     - echo "CI_PIPELINE_URL is ${CI_PIPELINE_URL}"
-    - scripts/slack ${NOTIFY_CHANNEL} "☠️ synchronization for ruby3 failed! ☠️ See ${CI_PIPELINE_URL}" "x" "ruby3-sync"
+    - scripts/slack ${NOTIFY_CHANNEL} "☠️ synchronization for ruby2 failed! ☠️ See ${CI_PIPELINE_URL}" "x" "ruby2-sync"