Fix file path for gn3 config

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 94.17%. Comparing base (acb7e29) to head (6217f4b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #69 +/- ## ======================================= Coverage 94.17% 94.17% ======================================= Files 15 15 Lines 978 978 ======================================= Hits 921 921 Misses 57 57 ```

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[WeiShengL]

@samvanstroud this should be fixed now

[samvanstroud]

Thanks @WeiShengL!