OAuth 2 token refresh fails

### Expected Behavior

Refreshing tokens whether manually or automatically should work. It previously worked, but one of the more recent updates seems to have broken it.

### Actual Behavior

Clicking refresh shows
[oauth2] Failed to refresh token url=https://[omitted]/connect/token status=400

A work around is to clear and fetch tokens again, where it gets issued a new id/access/refresh token. I have taken the refresh token and tested manually that it works.

It seems that something insomnia is passing with the connect/token request, perhaps in the body, is not correct and the identity server is rejecting it with a 400.

I'm unable to dig into any details about the request. There is no 'response timeline' button like a successful OAuth 2 request would give.

**Another work around is to roll back to 2022.7.0 which can refresh correctly**

### Reproduction Steps

1. Navigate to a previously working request
2. Open OAuth 2 authentication section
3. Click 'Refresh Token'

### Is there an existing issue for this?

- [X] I have searched the [issue tracker](https://www.github.com/Kong/insomnia/issues) for this problem.

### Additional Information

Both 2023.1.0-beta.3 and 2022.7.5 have this problem.

### Insomnia Version

2022.7.5

### What operating system are you using?

macOS

### Operating System Version

Ventura 13.2.1

### Installation method

downloaded from insomnia.rest. also auto update.

### Last Known Working Insomnia version

2022.7.0

Start with the OAuth 2 authentication section and reproduce token refresh against the reported connect/token endpoint using Insomnia 2022.7.5, 2023.1.0-beta.3, and the last known working 2022.7.0. Compare the refresh request and response behavior; done means manual and automatic refresh work without clearing and fetching tokens again.

Written by the indexing model from the issue text.