web/admin: fix wizards with radio selects not working correctly after use (#4933)

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

web/src/admin/providers/ProviderWizard.ts

@@ -41,7 +41,7 @@ export class InitialProviderWizardPage extends WizardPage {
             ?.querySelectorAll<HTMLInputElement>("input[type=radio]")
             .forEach((radio) => {
                 if (radio.checked) {
-                    this.host.isValid = true;
+                    radio.dispatchEvent(new CustomEvent("change"));
                 }
             });
     };