Jump back to PHPUnit 8 to support PHP7.2 again

wol-soft · wol-soft · commit a8a5e460aa2d · 2020-02-17T14:47:03.000+01:00
diff --git a/composer.json b/composer.json
@@ -19,7 +19,7 @@
         "ext-mbstring": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.0"
+        "phpunit/phpunit": "^8.5"
     },
     "autoload": {
         "psr-4": {
