build(deps-dev): update symfony/var-dumper requirement from ^5.3 to ^5.4 (#87)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -26,7 +26,7 @@
         "phpstan/phpstan-phpunit": "^1",
         "phpunit/phpunit": "^9.5",
         "spatie/phpunit-snapshot-assertions": "^4.2",
-        "symfony/var-dumper": "^5.3",
+        "symfony/var-dumper": "^5.4",
         "thecodingmachine/phpstan-safe-rule": "^1.1"
     },
     "config": {