Update symfony/console requirement from ^4.1 to ^4.1 || ^5.0 (#14)

* Update symfony/console requirement from ^4.1 to ^4.1 || ^5.0

Updates the requirements on [symfony/console](https://github.com/symfony/console) to permit the latest version.
- [Release notes](https://github.com/symfony/console/releases)
- [Changelog](https://github.com/symfony/console/blob/master/CHANGELOG.md)
- [Commits](symfony/console@v4.1.0...v5.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Added amqp to php for testing

composer.json

@@ -1,15 +1,17 @@
 {
   "name": "casco/amqp",
+  "license": "proprietary",
   "type": "library",
+  "description": "Library for easy integration with humus/amqp",
   "config": {
     "sort-packages": true
   },
   "require": {
     "ext-pcntl": "^7.2",
     "php-amqplib/php-amqplib": "^2.8",
     "prolic/humus-amqp": "^1.4",
-    "symfony/console": "^4.3",
-    "symfony/http-kernel": "^4.3"
+    "symfony/console": "^4.3 || ^5.0",
+    "symfony/http-kernel": "^4.3 || ^5.0"
   },
   "require-dev": {
     "phpunit/phpunit": "^8.0",

docker/php/Dockerfile

@@ -1,10 +1,26 @@
 FROM php:7.2.11-cli-alpine3.7
 
+RUN apk add --no-cache \
+    rabbitmq-c-dev
+
 RUN docker-php-ext-install \
     bcmath \
     sockets \
     pcntl
 
+RUN apk add --virtual .build-dependencies --no-cache \
+    autoconf \
+#    g++ \
+    gcc \
+#    git \
+    libc-dev \
+    make \
+    && pecl channel-update pecl.php.net \
+    && pecl install amqp \
+    && docker-php-ext-enable amqp \
+    # cleanup
+    && apk del .build-dependencies
+
 RUN curl -sS -o /tmp/composer-setup.php https://getcomposer.org/installer \
     && curl -sS -o /tmp/composer-setup.sig https://composer.github.io/installer.sig \
     && php -r "if (hash('SHA384', file_get_contents('/tmp/composer-setup.php')) !== trim(file_get_contents('/tmp/composer-setup.sig'))) { unlink('/tmp/composer-setup.php'); echo 'Invalid installer' . PHP_EOL; exit(1); }" \