Update issue-bot

Author: renovate[bot]

issue-bot/composer.json

@@ -7,7 +7,7 @@
 		"league/commonmark": "^2.3",
 		"nette/neon": "^3.3",
 		"nette/utils": "^3.2",
-		"phpstan/phpstan-strict-rules": "^2.0",
+		"phpstan/phpstan-strict-rules": "1.6.x-dev",
 		"symfony/console": "^6.1",
 		"symfony/finder": "^6.1"
 	},