Match --no-install-suggests flag with production Dockerfile

.devcontainer/Dockerfile used --no-install-recommends while the
root Dockerfile uses --no-install-suggests for the same package
list, contradicting the comment that claims they match. Align the
flag and note that the list should stay in sync with the root
Dockerfile.

.devcontainer/Dockerfile

@@ -1,8 +1,9 @@
 FROM node:22-slim
 
-# Match the build tooling used by the production Dockerfile so native
+# Match the build tooling used by the production Dockerfile (keep this
+# list and the --no-install-suggests flag in sync with it) so native
 # dependencies (e.g. Prisma) compile correctly inside the Dev Container
-RUN apt-get update && apt-get install -y --no-install-recommends \
+RUN apt-get update && apt-get install -y --no-install-suggests \
   g++ \
   git \
   make \