Update Dockerfile

Dockerfile

@@ -1,10 +1,12 @@
-FROM python:3.10-alpine
+FROM python:alpine3.18
 
 COPY entrypoint-proxy /entrypoint
 
 RUN adduser -D -u 54001 hbmon && \
         apk update && \
         apk add git gcc musl-dev libffi-dev libssl-dev cargo && \
+        pip install --upgrade pip && \
+        pip cache purge && \
         cd /opt && \
         git clone https://github.com/ShaYmez/HBMonv2.git && \
         cd /opt/HBmonv2 && \