Added intl extension

Author: rennokki

Dockerfile

@@ -2,6 +2,10 @@ FROM php:8.1-cli-alpine
 
 WORKDIR /app
 
+RUN apk add icu-dev && \
+    docker-php-ext-configure intl && \
+    docker-php-ext-install intl
+
 COPY builds/operator /app/operator
 
 CMD ["/app/operator", "monitor"]