Forgot update version on 2.19.0 release

Author: pitbulk

lib/Saml2/version.json

@@ -1,6 +1,6 @@
 {
     "php-saml": {
-        "version": "2.18.1",
-        "released": "25/11/2019"
+        "version": "2.19.0",
+        "released": "26/11/2020"
     }
 }