Fix composer dependencies

Author: tvdijen

composer.json

@@ -33,11 +33,11 @@
     },
     "require": {
         "php": "^8.1",
-        "simplesamlphp/simplesamlphp": "^2.1",
-        "symfony/http-foundation": "^6.4"
+        "simplesamlphp/simplesamlphp": "^2.1.0",
+        "symfony/http-foundation": "^6.4.0"
     },
     "require-dev": {
-        "simplesamlphp/simplesamlphp-test-framework": "^1.5"
+        "simplesamlphp/simplesamlphp-test-framework": "^1.7.0"
     },
     "support": {
         "issues": "https://github.com/simplesamlphp/simplesamlphp-module-preprodwarning/issues",