Add font install

Author: NaokiTsuchiya

docker/app-state-diagram/Dockerfile

@@ -3,6 +3,8 @@ FROM php:alpine
 COPY --from=composer /usr/bin/composer /usr/bin/composer
 
 RUN apk --no-cache upgrade \
+ && apk --no-cache add ttf-linux-libertine \
+ && fc-cache -f \
  && apk --no-cache add graphviz nodejs npm
 
 RUN COMPOSER_ALLOW_SUPERUSER=1 composer global require koriym/app-state-diagram \

docker/asd-action/Dockerfile

@@ -3,7 +3,8 @@ FROM php:alpine
 COPY --from=composer /usr/bin/composer /usr/bin/composer
 
 RUN apk upgrade --no-cache \
- && apk add --no-cache graphviz \
+ && apk add --no-cache graphviz ttf-linux-libertine \
+ && fc-cache -f \
  && COMPOSER_ALLOW_SUPERUSER=1 composer require koriym/app-state-diagram
 
 COPY entrypoint.sh /entrypoint.sh