chore(docker): bump Elixir version for Docker images

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

docker/multiarch/Dockerfile

@@ -1,4 +1,4 @@
-FROM elixir as build
+FROM elixir:1.15 as build
 SHELL ["/bin/bash", "-c"]
 ENV MIX_ENV prod
 # ENV LANG en_US.UTF-8
@@ -12,7 +12,7 @@ ENV ERL_FLAGS=$ERL_FLAGS
 # Set the right versions
 ENV ELIXIR_VERSION latest
 ENV ERLANG_VERSION latest
-ENV NODE_VERSION 16
+ENV NODE_VERSION 18
 
 # Install system dependencies
 RUN apt-get update -yq && apt-get install -yq build-essential cmake postgresql-client git curl gnupg unzip exiftool webp imagemagick gifsicle