fix: Exclude container in the list of queryable roles

Author: eps1lon

src/__tests__/role.js

@@ -330,12 +330,6 @@ test('does not include the container in the queryable roles', () => {
 
 Here are the accessible roles:
 
-  list:
-
-  Name "":
-  <ul />
-
-  --------------------------------------------------
   listitem:
 
   Name "":

src/queries/role.js

@@ -95,9 +95,12 @@ const getMissingError = (
   role,
   {hidden = getConfig().defaultHidden, name} = {},
 ) => {
-  const roles = prettyRoles(container, {
-    hidden,
-    includeName: name !== undefined,
+  let roles = ''
+  Array.from(container.children).forEach(childElement => {
+    roles += prettyRoles(childElement, {
+      hidden,
+      includeName: name !== undefined,
+    })
   })
   let roleMessage