chore: set the latest VSCode node version to be based on the VSCode repo

Author: gagik

.evergreen.yml

@@ -4105,15 +4105,14 @@ functions:
         working_dir: src
         shell: bash
         env:
-          # Node version used by VSCode 1.105.1
-          # TODO: Look into automatically getting this for the latest version.
-          NODE_JS_VERSION: "22.19.0"
           DOCKERHUB_USERNAME: ${dockerhub_username}
           DOCKERHUB_PASSWORD: ${dockerhub_password}
         script: |
           set -e
           {
-          echo "Using Node.js version: ${NODE_JS_VERSION}"
+          # Fetch Node.js version from VS Code's .nvmrc to ensure we test with the same version
+          NODE_JS_VERSION=$(curl -fsSL https://raw.githubusercontent.com/microsoft/vscode/refs/heads/main/.nvmrc | tr -d '[:space:]')
+          echo "Using Node.js version from VS Code .nvmrc: ${NODE_JS_VERSION}"
           (cd scripts/docker && docker build --build-arg NODE_JS_VERSION="${NODE_JS_VERSION}" -t ubuntu24.04-xvfb -f ubuntu24.04-xvfb.Dockerfile .)
           docker run \
             --rm -v $PWD:/tmp/build ubuntu24.04-xvfb \

.evergreen/evergreen.yml.in

@@ -324,15 +324,14 @@ functions:
         working_dir: src
         shell: bash
         env:
-          # Node version used by VSCode 1.105.1
-          # TODO: Look into automatically getting this for the latest version.
-          NODE_JS_VERSION: "22.19.0"
           DOCKERHUB_USERNAME: ${dockerhub_username}
           DOCKERHUB_PASSWORD: ${dockerhub_password}
         script: |
           set -e
           {
-          echo "Using Node.js version: ${NODE_JS_VERSION}"
+          # Fetch Node.js version from VS Code's .nvmrc to ensure we test with the same version
+          NODE_JS_VERSION=$(curl -fsSL https://raw.githubusercontent.com/microsoft/vscode/refs/heads/main/.nvmrc | tr -d '[:space:]')
+          echo "Using Node.js version from VS Code .nvmrc: ${NODE_JS_VERSION}"
           (cd scripts/docker && docker build --build-arg NODE_JS_VERSION="${NODE_JS_VERSION}" -t ubuntu24.04-xvfb -f ubuntu24.04-xvfb.Dockerfile .)
           docker run \
             --rm -v $PWD:/tmp/build ubuntu24.04-xvfb \

scripts/docker/ubuntu24.04-xvfb.Dockerfile

@@ -1,22 +1,25 @@
 FROM ubuntu:24.04
 
-ARG NODE_JS_VERSION
-ENV NODE_JS_VERSION=${NODE_JS_VERSION}
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update
 RUN apt-get -y -qq install git curl apt-transport-https ca-certificates apt-utils software-properties-common
 
-# Install Node.js using nvm (reusing pattern from .evergreen/install-node.sh)
+# Install Node.js using nvm with version from VS Code's .nvmrc
+# This ensures we test with the same Node.js version that VS Code uses
 ENV NVM_DIR="/root/.nvm"
 RUN curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash && \
     . "$NVM_DIR/nvm.sh" && \
     [ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" && \
-    nvm install --no-progress $NODE_JS_VERSION && \
-    nvm alias default $NODE_JS_VERSION && \
-    nvm use $NODE_JS_VERSION
+    NODE_VERSION=$(curl -fsSL https://raw.githubusercontent.com/microsoft/vscode/refs/heads/main/.nvmrc | tr -d '[:space:]') && \
+    echo "Installing Node.js version from VS Code .nvmrc: $NODE_VERSION" && \
+    nvm install --no-progress $NODE_VERSION && \
+    nvm alias default $NODE_VERSION && \
+    nvm use $NODE_VERSION && \
+    echo "export NVM_DIR=\"$NVM_DIR\"" >> /root/.bashrc && \
+    echo "export PATH=\"$NVM_DIR/versions/node/v${NODE_VERSION}/bin:\$PATH\"" >> /root/.bashrc
 
-# Set PATH so node/npm are available in all contexts
-ENV PATH="$NVM_DIR/versions/node/v${NODE_JS_VERSION}/bin:$PATH"
+# Set PATH so node/npm are available in all contexts (using wildcard since we don't know the version at Docker ENV time)
+RUN bash -c ". $NVM_DIR/nvm.sh && ln -sf \$(which node) /usr/local/bin/node && ln -sf \$(which npm) /usr/local/bin/npm"
 
 # Install vscode dependencies
 RUN apt-get -y -qq install libnss3 gnupg libxkbfile1 libsecret-1-0 libsecret-1-dev libgtk-3-0t64 libxss1 libgbm1 libasound2t64 xvfb build-essential pkg-config