Upgrade braces to resolve security vulnerability

Audit failed with the following message:

```
# npm audit report

braces  <3.0.3
Severity: high
Uncontrolled resource consumption in braces - GHSA-grv7-fg5c-xmjg
fix available via `npm audit fix`
node_modules/braces

1 high severity vulnerability
```

I solved it by running `npm audit fix`.