Ensure dev-tools are up to date (#235)

* Ensure dev-tools are up to date

* Update dev dependencies

Author: kubawerlos

composer.json

@@ -16,8 +16,8 @@
         "symfony/finder": "^3.0 || ^4.0 || ^5.0"
     },
     "require-dev": {
-        "johnkary/phpunit-speedtrap": "^3.1.0",
-        "phpunit/phpunit": "^7.5.20 || ^8.5.2"
+        "johnkary/phpunit-speedtrap": "^3.2.0",
+        "phpunit/phpunit": "^8.5.2 || ^9.0.1"
     },
     "autoload": {
         "psr-4": {

dev-tools/composer.json

@@ -25,6 +25,7 @@
     "scripts": {
         "analyse": [
             "composer validate --strict --working-dir=..",
+            "composer outdated --ignore=php-cs-fixer/diff --strict",
             "composer normalize --dry-run ../composer.json",
             "composer-require-checker check ../composer.json",
             "phpcs --exclude=Generic.Files.LineLength --report-full --standard=PSR2 ../src ../dev-tools/src ../tests",