ci(local-node): replace deprecated node setup (#642)

## What ❔

As in commit 33174aa and `docker/zk-environment/Dockerfile` use the
repo to setup node, instead of the `curl | sh`.

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## Why ❔
The old method is deprecated and it saves one minute waiting time
instead of the deprecation banner being displayed.

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are the principles behind them? -->
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## Checklist

<!-- Check your PR fulfills the following items. -->
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- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [ ] Tests for the changes have been added / updated.
- [ ] Documentation comments have been added / updated.
- [ ] Code has been formatted via `zk fmt` and `zk lint`.
- [ ] Spellcheck has been run via `cargo spellcheck
--cfg=./spellcheck/era.cfg --code 1`.

Signed-off-by: Harald Hoyer <harald@matterlabs.dev>

docker/local-node/Dockerfile

@@ -6,12 +6,15 @@ WORKDIR /
 
 # Install required dependencies
 RUN apt-get update; apt-get install -y make bash git openssl libssl-dev gcc g++ curl pkg-config software-properties-common jq wget
-RUN apt-get install -y libpq5 ca-certificates postgresql-client && rm -rf /var/lib/apt/lists/*
+RUN apt-get install -y curl gnupg libpq5 ca-certificates postgresql-client && rm -rf /var/lib/apt/lists/*
 
 # Install node and yarn
-RUN curl -sL https://deb.nodesource.com/setup_18.x | bash -
-RUN apt-get install -y nodejs
-RUN npm install -g yarn
+ENV NODE_MAJOR=18
+RUN mkdir -p /etc/apt/keyrings && \
+    wget -c -O - 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_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list && \
+    apt-get update && apt-get install nodejs -y && \
+    npm install -g yarn
 
 # Copy compiler (both solc and zksolc) binaries
 # Obtain `solc` 0.8.12.