Bump Fronter.NET from 3faf7a5 to 43e339c (#3063)

Bumps
[Fronter.NET](https://github.com/ParadoxGameConverters/Fronter.NET) from
`3faf7a5` to `43e339c`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ParadoxGameConverters/Fronter.NET/commit/43e339ccb3379b2bfe723e5507f4f9a43addd1f0"><code>43e339c</code></a>
Bump dependencies (<a
href="https://redirect.github.com/ParadoxGameConverters/Fronter.NET/issues/965">#965</a>)</li>
<li>See full diff in <a
href="https://github.com/ParadoxGameConverters/Fronter.NET/compare/3faf7a50c5340e63acaeab1eb6345bb75fa06404...43e339ccb3379b2bfe723e5507f4f9a43addd1f0">compare
view</a></li>
</ul>
</details>
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</details>

Author: IhateTrains