Revert "chore(server): use jemalloc to reduce RSS (#13001)" (#13074)

#### PR Dependency Tree


* **PR #13074** 👈

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## Summary by CodeRabbit

* **Chores**
* Updated deployment configuration to remove use of the jemalloc
library.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

.github/deployment/node/Dockerfile

@@ -7,10 +7,7 @@ COPY ./packages/frontend/apps/mobile/dist /app/static/mobile
 WORKDIR /app
 
 RUN apt-get update && \
-  apt-get install -y --no-install-recommends openssl libjemalloc2 && \
+  apt-get install -y --no-install-recommends openssl && \
   rm -rf /var/lib/apt/lists/*
 
-# Enable jemalloc by preloading the library
-ENV LD_PRELOAD=libjemalloc.so.2
-
 CMD ["node", "./dist/main.js"]