fix: Update python requirements

sites/Dockerfile

@@ -2,14 +2,13 @@ FROM --platform=$BUILDPLATFORM python:3.10-alpine AS builder
 
 WORKDIR /app
 
-COPY requirements.txt /app
+COPY ../requirements.txt /app/requirements.txt
 RUN --mount=type=cache,target=/root/.cache/pip \
     pip3 install -r requirements.txt
 
 COPY . /app
 COPY ../templates /app/templates
 COPY ../.env /app/.env
-COPY ../requirements.txt /app/requirements.txt
 
 # Add mount point for data volume
 VOLUME /data