Update CircleCI config

.circleci/config.yml

@@ -22,7 +22,7 @@ jobs:
       - checkout
 
       - run: sudo apt update && sudo apt install zlib1g-dev libsqlite3-dev
-      - run: sudo -E docker-php-ext-install bcmath pcntl zip
+      - run: sudo -E docker-php-ext-install bcmath intl pcntl zip
 
       # Download and cache dependencies