Jekyll: Pins "sass-embedded" to unblock build failures (devcontainers#604)

Author: samruddhikhandale

src/jekyll/.devcontainer/Dockerfile

@@ -14,6 +14,9 @@ ENV LANG=en_US.UTF-8 \
 
 # Install bundler, latest jekyll, and github-pages for older jekyll
 RUN gem update --system
+
+# https://github.com/ntkme/sass-embedded-host-ruby/issues/130
+RUN gem install sass-embedded -v 1.62.1
 RUN gem install bundler jekyll github-pages
 
 RUN chown -R "vscode:rvm" "/usr/local/rvm/" \