installing numpy as package for arm v7 build

release.dockerfile

@@ -1,5 +1,9 @@
 FROM python:3.10-slim
 
+RUN apt update && apt install -y \
+    python3-numpy \ 
+    && rm -rf /var/lib/apt/lists/*
+
 RUN python -m pip install nicegui
 
 WORKDIR /app