Bump Fronter from e3c7930 to f9a1fb2 (#13)

Bumps [Fronter](https://github.com/ParadoxGameConverters/Fronter) from `e3c7930` to `f9a1fb2`.
- [Commits](ParadoxGameConverters/Fronter@e3c7930...f9a1fb2)

---
updated-dependencies:
- dependency-name: Fronter
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>