Merge "Install cache/integration-tests as require-dev"

diff --combined composer.json
index 3cd5ea3,06cd70d..b16983f
--- 1/composer.json
--- 2/composer.json
+++ b/composer.json
@@@ -55,6 -55,7 +55,7 @@@
                "zordius/lightncandy": "0.23"
        },
        "require-dev": {
+               "cache/integration-tests": "0.16.0",
                "composer/spdx-licenses": "1.3.0",
                "hamcrest/hamcrest-php": "^2.0",
                "jakub-onderka/php-parallel-lint": "0.9.2",
@@@ -63,7 -64,6 +64,7 @@@
                "mediawiki/mediawiki-codesniffer": "20.0.0",
                "monolog/monolog": "~1.22.1",
                "nikic/php-parser": "3.1.3",
 +              "seld/jsonlint": "1.7.1",
                "nmred/kafka-php": "0.1.5",
                "phpunit/phpunit": "4.8.36 || ^6.5",
                "psy/psysh": "0.9.6",