chore: Bump Terminal.Gui from 2.2.2 to 2.4.3

---
updated-dependencies:
- dependency-name: Terminal.Gui
  dependency-version: 2.4.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/Imperium.Terminal/Imperium.Terminal.fsproj

@@ -18,7 +18,7 @@
     <Compile Include="Program.fs" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Terminal.Gui" Version="2.2.2" />
+    <PackageReference Include="Terminal.Gui" Version="2.4.3" />
     <ProjectReference Include="../Imperium/Imperium.fsproj" />
   </ItemGroup>
 </Project>