Widen psr/http-message dep

Author: loevgaard

composer.json

@@ -17,7 +17,7 @@
         "psr/http-client-implementation": "^1",
         "psr/http-factory": "^1.0",
         "psr/http-factory-implementation": "^1",
-        "psr/http-message": "^1.0",
+        "psr/http-message": "^1.0 || ^2.0",
         "psr/log": "^1.1 || ^2.0 || ^3.0",
         "symfony/polyfill-php80": "^1.27",
         "webmozart/assert": "^1.11"