devcontainer: Ensure that Node.js and Yarn are installed (#17237)

https://nodejs.org/en/download/package-manager/#debian-and-ubuntu-based-linux-distributions

.devcontainer/Dockerfile

@@ -2,4 +2,7 @@ FROM mcr.microsoft.com/vscode/devcontainers/java:11
 
 RUN apt-key adv --refresh-keys --keyserver keyserver.ubuntu.com\
   && apt-get update && export DEBIAN_FRONTEND=noninteractive \
-  && apt-get -y install --no-install-recommends leiningen
+  && apt-get -y install --no-install-recommends leiningen yarn
+
+RUN curl -fsSL https://deb.nodesource.com/setup_14.x | bash
+RUN apt-get update && apt-get -y install --no-install-recommends nodejs
\ No newline at end of file