Update Dockerfile

Dockerfile

 FROM alpine:latest
 
 RUN set -ex \
-    && apk add --virtual .build-deps build-base python3-dev \
-    && apk add --no-cache git python3 \
+    && apk add --virtual .build-deps build-base python3-dev libxml2-dev libxslt-dev \
+    && apk add --no-cache git python3 libxml2 libxslt\
     && python3 -m ensurepip \
     && pip3 install --upgrade pip \
-    && pip3 install mkdocs-material==6.1.6 mkdocs-macros-plugin==0.4.20 mkdocs-mermaid2-plugin==0.5.0\
+    && pip3 install lxml==4.6.2 mkdocs-material==6.2.3 mkdocs-macros-plugin==0.5.0 mkdocs-mermaid2-plugin==0.5.1\
     && apk del .build-deps
 
 WORKDIR /docs