Update Dockerfile

.devcontainer/Dockerfile

@@ -1,11 +1,13 @@
 FROM mcr.microsoft.com/devcontainers/javascript-node:1-20@sha256:f28172ab4f8cf57dacadc4d2aecf6d108bd9881617bd133b16ddcff6e6eef340
 
-# We uninstall pnpm here, since we enable the corepack version in the postCreateCommand
-# This ensures we respect the "packageManager" version in package.json
-RUN npm uninstall -g pnpm
-
-# Install Proto CLI and it's dependencies
-RUN apt-get update && apt-get install -y git unzip gzip xz-utils
+# Enable Proto
 RUN curl -fsSL https://moonrepo.dev/install/proto.sh | bash -s -- --yes
 
+# Change default Node version
+RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install 20.14.0"
+
+# Enable corepack (incase proto fails)
+RUN corepack enable pnpm
+
+# Copy welcome message
 COPY welcome-message.txt /usr/local/etc/vscode-dev-containers/first-run-notice.txt