RELEASE-3.10.0: Make sessionId request parameter optional in IDV demo project

Author: MrBurtyyy

examples/doc-scan/src/main/java/com/yoti/docscan/demo/controller/DocScanController.java

@@ -72,7 +72,7 @@ public String getIndex(final Model model, HttpSession httpSession) {
     }
 
     @RequestMapping(value = "/success", method = RequestMethod.GET)
-    public String getUserSession(@RequestParam(value = "sessionId") String sessionIdQueryParam, final Model model, HttpSession httpSession) {
+    public String getUserSession(@RequestParam(value = "sessionId", required = false) String sessionIdQueryParam, final Model model, HttpSession httpSession) {
         String sessionId;
         if (sessionIdQueryParam != null) {
             sessionId = sessionIdQueryParam;