Fix syntax

Author: tvdijen

composer.json

@@ -40,10 +40,10 @@
 
         "beste/clock": "~3.0",
         "icanhazstring/composer-unused": "^0.9.6",
-        "maglnet/composer-require-checker": "^4.20"
+        "maglnet/composer-require-checker": "^4.20",
         "mockery/mockery": "~1.6",
         "simplesamlphp/simplesamlphp": "^2.5",
-        "simplesamlphp/simplesamlphp-test-framework": "~2.0",
+        "simplesamlphp/simplesamlphp-test-framework": "~2.0"
     },
     "suggest": {
         "ext-soap": "*"