Update nette/tester requirement from ^2.3.4 to ^2.3.5

Updates the requirements on nette/tester to permit the latest version.

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

composer.json

@@ -20,7 +20,7 @@
         "nette/application": "^3.0@dev"
     },
     "require-dev": {
-        "nette/tester": "^2.3.4",
+        "nette/tester": "^2.3.5",
         "phpstan/phpstan": "^0.12.55",
         "phpstan/phpstan-strict-rules": "^0.12.9",
         "pepakriz/phpstan-exception-rules": "^0.11.2",