Install yarn via npm to fix NodeSource Node 22 conflict with Debian yarnpkg

Author: ericmj

Dockerfile

@@ -14,8 +14,9 @@ RUN apt update && \
     curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg && \
     echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_22.x nodistro main" > /etc/apt/sources.list.d/nodesource.list && \
     apt update && \
-    apt install -y --no-install-recommends nodejs yarnpkg && \
-    apt clean -y && rm -rf /var/lib/apt/lists/*
+    apt install -y --no-install-recommends nodejs && \
+    apt clean -y && rm -rf /var/lib/apt/lists/* && \
+    npm install -g yarn
 
 # prepare build dir
 RUN mkdir /app
@@ -36,7 +37,7 @@ RUN mix deps.compile
 
 # build assets
 COPY assets assets
-RUN cd assets && yarnpkg install && yarnpkg run webpack --mode production
+RUN cd assets && yarn install && yarn run webpack --mode production
 RUN mix phx.digest
 
 # build project