build(deps-dev): update phpstan/phpstan requirement (#150)

Updates the requirements on [phpstan/phpstan](https://github.com/phpstan/phpstan) to permit the latest version.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Commits](phpstan/phpstan@0.12.82...0.12.85)

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

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

composer.json

@@ -24,7 +24,7 @@
 		"nette/finder": "~2.5",
 		"nette/neon": "~3.0",
 		"phpstan/extension-installer": "1.1.0",
-		"phpstan/phpstan": "0.12.82",
+		"phpstan/phpstan": "0.12.85",
 		"phpstan/phpstan-deprecation-rules": "0.12.6",
 		"phpstan/phpstan-strict-rules": "0.12.9",
 		"symfony/config": "~4.4 || ~5.0",