Merge pull request #9 from hannesvdvreken/patch-2

Allow `psr/container:^2`

Author: Ocramius

composer.json

@@ -31,7 +31,7 @@
     "require": {
         "php": "^7.3 || ~8.0.0 || ~8.1.0",
         "mezzio/mezzio-session": "^1.0",
-        "psr/container": "^1.0",
+        "psr/container": "^1.0|^2.0",
         "psr/http-server-middleware": "^1.0"
     },
     "require-dev": {