Update laminas/laminas-diactoros requirement from ^2.9 to ^2.11

Updates the requirements on [laminas/laminas-diactoros](https://github.com/laminas/laminas-diactoros) to permit the latest version.
- [Release notes](https://github.com/laminas/laminas-diactoros/releases)
- [Commits](laminas/laminas-diactoros@2.9.0...2.11.0)

---
updated-dependencies:
- dependency-name: laminas/laminas-diactoros
  dependency-type: direct:development
...

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

Author: dependabot[bot]

composer.json

@@ -42,7 +42,7 @@
     },
     "require-dev": {
         "adriansuter/php-autoload-override": "^1.3",
-        "laminas/laminas-diactoros": "^2.9",
+        "laminas/laminas-diactoros": "^2.11",
         "nyholm/psr7": "^1.5",
         "php-http/psr7-integration-tests": "dev-master",
         "phpstan/phpstan": "^1.6",