using version in release docker image build

release.dockerfile

@@ -1,8 +1,9 @@
+ARG VERSION
 FROM python:3.11-slim
 
 LABEL maintainer="Zauberzeug GmbH <info@zauberzeug.com>"
 
-RUN python -m pip install nicegui
+RUN python -m pip install nicegui==$VERSION
 
 WORKDIR /app