Update docker file

support/picsur-stage1.Dockerfile

@@ -1,6 +1,6 @@
 # This dockerfile only builds the javascript part of the project, so tsc and angular compilation
 
-FROM node:latest AS BUILDER_STAGE1
+FROM node:18 AS BUILDER_STAGE1
 
 SHELL ["/bin/bash", "-c"]
 

support/picsur-stage2.Dockerfile

@@ -3,7 +3,7 @@
 # Always fetch amd64 image
 FROM ghcr.io/rubikscraft/picsur-alpha-stage1:latest AS BUILDER_STAGE1
 
-FROM node:alpine AS BUILDER_STAGE2
+FROM node:18-alpine AS BUILDER_STAGE2
 
 RUN apk add python3 build-base
 
@@ -12,7 +12,7 @@ COPY --from=BUILDER_STAGE1 /picsur ./
 
 RUN yarn workspaces focus -A --production
 
-FROM node:alpine
+FROM node:18-alpine
 
 ENV PICSUR_PRODUCTION=true