update tier

Solutions/Google Cloud Platform Security Command Center/Package/mainTemplate.json

@@ -563,6 +563,7 @@
                 "support": {
                     "name": "[variables('_solutionAuthor')]",
 					"email": "support@microsoft.com",
+					"tier": "Microsoft",
 					"link": "https://support.microsoft.com/"
                 },
                 "dependencies": {