Add userinfo email scope for gcalendar plugin auth refresh to resolve 401

Signed-off-by: Benjamin <benjamin.mccain@onepeloton.com>

.changeset/funny-cups-count.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-gcalendar': patch
+---
+
+Pass user info email scope on auth refresh to resolve invalid credentials error

plugins/gcalendar/src/hooks/useSignIn.ts

@@ -25,7 +25,10 @@ export const useSignIn = () => {
   const signIn = useCallback(
     async (optional = false) => {
       const token = await authApi.getAccessToken(
-        'https://www.googleapis.com/auth/calendar.readonly',
+        [
+          'https://www.googleapis.com/auth/calendar.readonly',
+          'https://www.googleapis.com/auth/userinfo.email',
+        ],
         {
           optional,
           instantPopup: !optional,