.gitlab-ci.yml: reprepro job must extend .setup to populate ./repo directory

.gitlab-ci.yml

@@ -353,6 +353,7 @@ build_qcacld:
 
 reprepro:
   stage: reprepro
+  extends: .setup
   tags:
     - arm64
   dependencies:
@@ -375,7 +376,6 @@ reprepro:
     set -x
     apt-get update -o Acquire::AllowReleaseInfoChange=true -o quiet::ReleaseInfoChange=true
     apt-get --no-install-recommends -y install reprepro python3 devscripts
-    adduser --comment build --disabled-password build
     runuser -u build -- sh -x ./reprepro.sh
     {
       echo "CI_PROJECT_NAMESPACE=\"$CI_PROJECT_NAMESPACE\"";