adding kirby3-janitor

vendor/league/climate/Dockerfile

@@ -0,0 +1,13 @@
+ARG PHP_VERSION=7.3
+FROM php:${PHP_VERSION}-cli
+
+ARG COVERAGE
+RUN if [ "$COVERAGE" = "pcov" ]; then pecl install pcov && docker-php-ext-enable pcov; fi
+
+# Install composer to manage PHP dependencies
+RUN apt-get update && apt-get install -y git zip
+RUN curl https://getcomposer.org/download/1.9.0/composer.phar -o /usr/local/sbin/composer
+RUN chmod +x /usr/local/sbin/composer
+RUN composer self-update
+
+WORKDIR /app