[Discover] Fix indices permission for multiline test (#111284) (#111489)

Co-authored-by: Matthias Wilhelm <[email protected]>

test/functional/config.js

@@ -287,7 +287,7 @@ export default async function ({ readConfigFile }) {
             cluster: [],
             indices: [
               {
-                names: ['message_with_newline'],
+                names: ['newline-test'],
                 privileges: ['read', 'view_index_metadata'],
                 field_security: { grant: ['*'], except: [] },
               },