Add dependencies based on composer-require-checker output

Author: flavioheleno

composer.json

@@ -23,7 +23,12 @@
     ],
     "require": {
         "php": ">=8.1",
-        "jane-php/open-api-runtime": "^7.2"
+        "ext-json": "*",
+        "ext-mbstring": "*",
+        "jane-php/open-api-runtime": "^7.2",
+        "psr/http-client": "^1.0",
+        "psr/http-factory": "^1.0",
+        "psr/http-message": "^1.0"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.8",