Merge pull request #78 from humanmade/backport-76-to-v6-branch

[Backport v6-branch] Update WP Simple Saml to 0.4.2

Author: roborourke

composer.json

@@ -17,7 +17,7 @@
 	},
 	"require": {
 		"php": ">=7.1",
-		"humanmade/wp-simple-saml": "0.4.1",
+		"humanmade/wp-simple-saml": "~0.4.2",
 		"humanmade/delegated-oauth": "^1.0.5"
 	},
 	"extra": {