Update Node.js installation to latest version

fix(base): unpin nodejs version to fix build failure

nodesource removed nodejs=22.22.1-1nodesource1 from the node_22.x
repo, breaking the Docker build. Install the latest Node.js 22.x
instead of pinning a specific patch version.

npm remains pinned to 11.11.0 for the bundled tar security fixes.

Author: ben-cobb

sandboxes/base/Dockerfile

@@ -58,7 +58,7 @@ RUN curl -fsSL https://deb.nodesource.com/setup_22.x | bash - && \
     apt-get install -y --no-install-recommends \
         build-essential \
         git \
-        nodejs=22.22.1-1nodesource1 \
+        nodejs \
         vim-tiny \
         nano \
     && rm -rf /var/lib/apt/lists/* \