Failed to list Firebase projects: Unable to parse JSON: SyntaxError: Unexpected token < in JSON at position 0

### Environment info

**firebase-tools: 12.5.4**

**Platform: Ubuntu 20.04.6 LTS (hosted on GCE)**

### Test case

List Firebase projects using firebase-tools

### Steps to reproduce

`npm install -g firebase-tools`
`firebase login --no-localhost`
`firebase projects:list`

### Expected behavior

Display a list of the current projects associated with the current logged in user, including: Project Display Name, Project ID, Project Number and Resource Location ID

### [REQUIRED] Actual behavior

`firebase projects:list --debug`
```
[2023-09-20T15:43:02.525Z] > command requires scopes: ["email","openid","https://www.googleapis.com/auth/cloudplatformprojects.readonly","https://www.googleapis.com/auth/firebase","https://www.googleapis.com/auth/cloud-platform"]
[2023-09-20T15:43:02.526Z] > authorizing via signed-in user (xxxx@xxxx.com)
⠋ Preparing the list of your Firebase projects[2023-09-20T15:43:02.532Z] >>> [apiv2][query] GET https://firebase.googleapis.com/v1beta1/projects pageSize=1000
⠙ Preparing the list of your Firebase projects[2023-09-20T15:43:02.696Z] <<< [apiv2][status] GET https://firebase.googleapis.com/v1beta1/projects 403
[2023-09-20T15:43:02.697Z] <<< [apiv2][body] GET https://firebase.googleapis.com/v1beta1/projects [omitted]
[2023-09-20T15:43:02.697Z] Unable to parse JSON: SyntaxError: Unexpected token < in JSON at position 0
✖ Preparing the list of your Firebase projects
[2023-09-20T15:43:02.714Z] FirebaseError: Unable to parse JSON: SyntaxError: Unexpected token < in JSON at position 0
at RetryOperation._fn (/home/chris/.nvm/versions/node/v18.12.1/lib/node_modules/firebase-tools/lib/apiv2.js:257:39)
at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

Error: Failed to list Firebase projects. See firebase-debug.log for more info.

Having trouble? Try again or contact support with contents of firebase-debug.log
```

### More info
The reported behavior started recently (not sure about the exact date, but most likely in the last couple of weeks)
Also impacts other firebase-tools commands, like `firebase use `
Using the same login account on local MacOS workstation works perfectly.