[Infra] Fix failing test by changing read role permission (elastic#20…

…5707)

Closes elastic#203740
## Summary

This PR fixes failing test by changing read role permission to include
`streams` and `apm`. As I mentioned in this
[comment](elastic#203740 (comment))
I saw some 403 errors related to some `streams` and `apm` APIs requests
so this should fix the test as it was meant to test if the dashboards
tab behaves correctly based on the admin/read-only role.

However, we should think about a solution to those errors in case we
have this scenario (read-only user role without apm/streams access) and
have a better error message/explanation of what is missing instead of
only showing the error toasts - I saw that we reverted
(elastic#202418) already a solution
(elastic#200151) for APM because of
other issues but now that we also include the `streams`
(elastic#200060) (not sure if we need to
do the request in infra but that's probably a different discussion) it's
something we can revisit at one point to improve the user experience.

x-pack/test/functional/apps/infra/hosts_view.ts

@@ -236,7 +236,9 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
         {
           feature: {
             infrastructure: ['read'],
+            apm: ['read'],
             advancedSettings: ['read'],
+            streams: ['read'],
           },
           spaces: ['*'],
         },