Vulnerability on version 4.0.0 related with is-svg

I am using `rollup-plugin-postcss` on my project and the dependabot found this vuln:

```
Dependabot cannot update is-svg to a non-vulnerable version
The latest possible version that can be installed is 3.0.0 because of the following conflicting dependency:

rollup-plugin-postcss@4.0.0 requires is-svg@^3.0.0 via a transitive dependency on postcss-svgo@4.0.2
The earliest fixed version is 4.2.2.

View logs or learn more about troubleshooting Dependabot errors.
```

Are you going to fix that? Please!