Move SSP to dev-dependencies

Author: tvdijen

composer.json

@@ -39,11 +39,11 @@
 
         "simplesamlphp/assert": "~1.8.1",
         "simplesamlphp/composer-module-installer": "~1.3.6",
-        "simplesamlphp/simplesamlphp": "^2.4.0",
         "simplesamlphp/simplesamlphp-module-ldap": "^2.4.6",
         "symfony/http-foundation": "^6.4.0"
     },
     "require-dev": {
+        "simplesamlphp/simplesamlphp": "^2.4.0",
         "simplesamlphp/simplesamlphp-test-framework": "^1.9.2"
     },
     "support": {