qa: update QA deps to versions known to work with PHP 7.3+

- laminas-coding-standard 2.2 series
- PHPUnit 7.5.15+

Signed-off-by: Matthew Weier O'Phinney <matthew@weierophinney.net>

Author: weierophinney

composer.json

@@ -40,9 +40,9 @@
         "laminas/laminas-zendframework-bridge": "^1.0"
     },
     "require-dev": {
-        "laminas/laminas-coding-standard": "~1.0.0",
+        "laminas/laminas-coding-standard": "~2.2.0",
         "laminas/laminas-session": "^2.8.5",
-        "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1.5"
+        "phpunit/phpunit": "^7.5.15"
     },
     "autoload": {
         "psr-4": {