ci: enable yarn in test image

Author: NGPixel

dev/tests/Dockerfile

@@ -72,6 +72,9 @@ RUN sed -i 's/\r$//' /tmp/app-install-chromedriver.sh && \
     chmod +x /tmp/app-install-chromedriver.sh
 RUN /tmp/app-install-chromedriver.sh
 
+# Activate Yarn
+RUN corepack enable
+
 # Get rid of installation files we don't need in the image, to reduce size
 RUN apt-get clean && rm -rf /var/lib/apt/lists/*
 
@@ -114,8 +117,3 @@ RUN chmod +rx /usr/local/bin/wait-for
 # Create workspace
 RUN mkdir -p /workspace
 WORKDIR /workspace
-
-# Install NPM modules
-COPY package.json package.json
-RUN npm install --no-audit
-RUN rm -f package.json package-lock.json

dev/tests/prepare.sh

@@ -8,6 +8,8 @@ echo "Copying config files..."
 cp ./docker/configs/settings_local.py ./ietf/settings_local.py
 echo "Ensure all requirements.txt packages are installed..."
 pip install -r requirements.txt
+echo "Compiling native node packages..."
+yarn rebuild
 echo "Building static assets..."
 yarn build
 echo "Creating data directories..."