Update dependencies

Author: tvdijen

composer.json

@@ -19,8 +19,8 @@
     "simplesamlphp/composer-module-installer": ">=1.1.6"
   },
     "require-dev": {
-        "simplesamlphp/simplesamlphp": "^1.16",
-        "phpunit/phpunit": "~4.8.35"
+        "simplesamlphp/simplesamlphp": "^1.17",
+        "phpunit/phpunit": "~4.8.36"
   },
   "support": {
     "issues": "https://github.com/simplesamlphp/simplesamlphp-module-cdc/issues",