Fix blackfire integration tests

Author: Igor Vitol

src/Test/Integration/_files/custom_cloud_base/docker-compose.exp.yml

@@ -97,7 +97,7 @@ services:
     image: 'magento/magento-cloud-docker-php:7.2-cli-1.2.0'
     env_file: ./.docker/config.env
     environment:
-      - 'PHP_EXTENSIONS=bcmath bz2 calendar exif gd gettext intl mysqli pcntl pdo_mysql soap sockets sysvmsg sysvsem sysvshm opcache zip xsl'
+      - 'PHP_EXTENSIONS=bcmath bz2 calendar exif gd gettext intl mysqli pcntl pdo_mysql soap sockets sysvmsg sysvsem sysvshm opcache zip blackfire xsl'
   build:
     hostname: build.magento2.test
     image: 'magento/magento-cloud-docker-php:7.2-cli-1.2.0'

src/Test/Integration/_files/custom_cloud_custom_images/docker-compose.exp.yml

@@ -148,7 +148,7 @@ services:
     image: 'php-v1:7.4-cli'
     env_file: ./.docker/config.env
     environment:
-      - 'PHP_EXTENSIONS=bcmath bz2 calendar exif gd gettext intl mysqli pcntl pdo_mysql soap sockets sysvmsg sysvsem sysvshm opcache zip xsl'
+      - 'PHP_EXTENSIONS=bcmath bz2 calendar exif gd gettext intl mysqli pcntl pdo_mysql soap sockets sysvmsg sysvsem sysvshm opcache zip blackfire xsl'
   build:
     hostname: build.magento2.test
     image: 'php-v1:7.4-cli'