chore(deps): allow dependency psr/http-message v2 (#1360)

Author: renovate[bot]

composer.json

@@ -26,7 +26,7 @@
     "phpstan/phpstan-phpunit": "1.3.11",
     "phpstan/phpstan-strict-rules": "1.5.1",
     "phpunit/phpunit": "^9.5",
-    "psr/http-message": "^1",
+    "psr/http-message": "^1 || ^2",
     "react/http": "^1.6",
     "react/promise": "^2.9",
     "rector/rector": "^0.15.18",