Update beberlei/assert requirement from ^2.9.5 to ^3.3.0

Updates the requirements on [beberlei/assert](https://github.com/beberlei/assert) to permit the latest version.
- [Release notes](https://github.com/beberlei/assert/releases)
- [Changelog](https://github.com/beberlei/assert/blob/master/CHANGELOG.md)
- [Commits](beberlei/assert@v2.9.5...v3.3.0)

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -10,7 +10,7 @@
 		"phpstan/phpstan": "^0.12.40"
 	},
 	"require-dev": {
-		"beberlei/assert": "^2.9.5",
+		"beberlei/assert": "^3.3.0",
 		"php-parallel-lint/php-parallel-lint": "^1.2",
 		"phing/phing": "^2.16.3",
 		"phpstan/phpstan-phpunit": "^0.12.16",