ci: Remove CI_EXEC bloat in test/06_script_b.sh

ci/test_run_all.sh

@@ -10,7 +10,8 @@ set -o errexit; source ./ci/test/00_setup_env.sh
 set -o errexit; source ./ci/test/04_install.sh
 set -o errexit; source ./ci/test/05_before_script.sh
 set -o errexit; source ./ci/test/06_script_a.sh
-set -o errexit; source ./ci/test/06_script_b.sh
+set -o errexit
+CI_EXEC "${BASE_ROOT_DIR}/ci/test/06_script_b.sh"
 
 if [ -z "$DANGER_RUN_CI_ON_HOST" ]; then
   echo "Stop and remove CI container by ID"