added possibility to set version of n8n

Dockerfile

@@ -1,6 +1,6 @@
 FROM node:lts-bookworm-slim
 
-
+ARG VERSION=latest
 
 # Update everything and install needed dependencies
 RUN apt-get update -y && \
@@ -8,22 +8,18 @@ RUN apt-get update -y && \
     apt-get install -y -q \
         graphicsmagick \
         tzdata \
-        curl \ 
+        curl \
         zip \
         unzip \
         jq \
         sed \
         python3 \
         ca-certificates \
-        build-essential    
+        build-essential
 
-# Install n8n and the also temporary all the packages
-# it needs to build it correctly.
-#RUN N8N_VERSION=$(curl -s https://api.github.com/repos/n8n-io/n8n/releases/latest | jq -r '.tag_name' | sed 's/^v//') && \
-RUN N8N_VERSION=n8n@2.11.3 && \
-    echo "Latest n8n version: ${N8N_VERSION}" && \
-    npm_config_user=root npm install -g \
-        ${N8N_VERSION} && \   
+# Install n8n and temporarily all packages it needs to build correctly.
+RUN echo "Installing n8n version: ${VERSION}" && \
+    npm_config_user=root npm install -g "n8n@${VERSION}" && \
     apt-get remove -y build-essential && \
     apt-get autoremove -y && \
     apt-get clean all