Preserve model caches and Docker networks during cleanup

tests/smoke.sh

@@ -5,7 +5,7 @@ ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd -P)"
 failures=0
 
 for script in "$ROOT_DIR/install.sh" "$ROOT_DIR/uninstall.sh" \
-              "$ROOT_DIR"/libexec/* "$ROOT_DIR"/scripts/*.sh "$ROOT_DIR"/config/*.example; do
+              "$ROOT_DIR"/libexec/* "$ROOT_DIR"/scripts/*.sh "$ROOT_DIR"/config/*.example "$ROOT_DIR"/maintenance/*.sh; do
   if bash -n "$script"; then
     printf 'OK bash -n %s\n' "${script#"$ROOT_DIR/"}"
   else