[Inter] Regular font `400` suddenly does not work anymore, with `slnt` option

**Describe the bug**
We've been using the `Inter` font for several months from the Google Fonts v2 API and so far everything worked perfectly fine.

However, since today we noticed some issues where the regular font weight `400` does not seem to be rendered correctly.
What we can observe is that the text is bolder when it should be regular.

This is the query that we use:

```
family=Inter:slnt,wght@-10,400;-10,500;0,400;0,500;0,600;0,700
```

From our side we didn't change anything and we're wondering if there might be issues from the Google Fonts API.

While debugging we noticed that if we remove the `slnt` option, the fonts are loaded correctly.

```
family=Inter:wght@400;500;600;700
```