fix: invalid dockerfile changes

Dockerfile

@@ -15,7 +15,7 @@ RUN apt-get update \
         libpq-dev=11.* \
         shared-mime-info=1.10-1 \
     && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
+    && rm -rf /var/lib/apt/lists/* \
     && adduser nexus --system --group -u 1000 && mkdir -p /app && chown -R nexus:nexus /app
 
 USER nexus