feat: make images arm64 compatible

build/erpnext-nginx/Dockerfile

@@ -1,9 +1,14 @@
-ARG NODE_IMAGE_TAG=12-prod
+ARG NODE_IMAGE_TAG=12-buster-slim
 ARG GIT_BRANCH=develop
-FROM bitnami/node:${NODE_IMAGE_TAG}
+FROM node:${NODE_IMAGE_TAG}
 
 ARG GIT_BRANCH
-COPY build/erpnext-nginx/install_app.sh /install_app
+COPY install_app.sh /install_app
+RUN chmod +x /install_app && \
+  apt-get update -y && \
+  apt-get install build-essential git python2 -y && \
+  apt-get clean && \
+  rm -rf /var/lib/apt/lists/*
 
 RUN /install_app erpnext https://github.com/frappe/erpnext ${GIT_BRANCH}