Use bundled promote task

Author: irina-batinic-sonarsource

.cirrus.yml

@@ -247,10 +247,8 @@ promote_task:
   <<: *LINUX_1_CPU_1G
   env:
     ARTIFACTORY_PROMOTE_ACCESS_TOKEN: VAULT[development/artifactory/token/${CIRRUS_REPO_OWNER}-${CIRRUS_REPO_NAME}-promoter access_token]
+    GITHUB_TOKEN: VAULT[development/github/token/${CIRRUS_REPO_OWNER}-${CIRRUS_REPO_NAME}-promotion token]
     #artifacts that will have downloadable links in burgr
     ARTIFACTS: "\
       org.sonarsource.kotlin:sonar-kotlin-plugin:jar"
-  script:
-    - source cirrus-env PROMOTE
-    - cirrus_jfrog_promote multi
-    - burgr-notify-promotion
+  script: cirrus_promote_gradle