[client] fix CI missing octi branch as valid remote

Author: labo-flg

scripts/clone-opencti.sh

@@ -49,6 +49,9 @@ clone_for_pr_build() {
         if [[ "${OPENCTI_PR_NUMBER}" != "" ]]
         then
             echo "[CLONE-DEPS] Found a PR in opencti with number ${OPENCTI_PR_NUMBER}, using it."
+             # adding octi branch to fetchable remote branches
+            # prevents error "Fatal: cannot set up tracking information; starting point '<branch name>' is not a branch"
+            git remote set-branches --add origin ${OPENCTI_BRANCH}
             gh pr checkout ${OPENCTI_PR_NUMBER}
         else
             echo "[CLONE-DEPS] No PR found in opencti side, keeping opencti:${PR_TARGET_BRANCH}"