Backup not working with all access token

I generated an all access token for my org via the UI and created a config. backup fails with permission issues, listing buckets works.

> influx config
```
Active Name URL Org
* influx-remote http://localhost:8086 default
```

> influx ping
OK

> influx backup ./influx-dump
```
2024/09/27 11:37:40 INFO: Downloading metadata snapshot
Error: failed to backup metadata: failed to download metadata snapshot: 401 Unauthorized: read:authorizations is unauthorized
```

> influx bucket list
works fine

> influx version
Influx CLI dev (git: a79a2a1b825867421d320428538f76a4c90aa34c) build_date: 2024-04-16T14:34:32Z

> influxd version
InfluxDB v2.7.4 (git: 19e5c0e1b7) build_date: 2023-11-08T17:07:39Z

happy to provide more info

Reproduce the failure with the shown `influx config`, `influx ping`, `influx backup`, and `influx bucket list` commands. Start by tracing the backup metadata snapshot entry point and its authorization requirements, then verify that an all-access token can complete the metadata backup without the `read:authorizations` 401 error.

Written by the indexing model from the issue text.