Bump Fody from 6.0.0 to 6.9.1

Bumps [Fody](https://github.com/Fody/Fody) from 6.0.0 to 6.9.1.
- [Release notes](https://github.com/Fody/Fody/releases)
- [Commits](Fody/Fody@6.0.0...6.9.1)

---
updated-dependencies:
- dependency-name: Fody
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

App.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1"/>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8.1" />
     </startup>
+  <runtime />
 </configuration>

NWNLogRotator.csproj

@@ -194,5 +194,7 @@
     </PropertyGroup>
     <Error Condition="!Exists('packages\Fody.6.0.0\build\Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Fody.6.0.0\build\Fody.targets'))" />
     <Error Condition="!Exists('packages\Costura.Fody.4.1.0\build\Costura.Fody.props')" Text="$([System.String]::Format('$(ErrorText)', 'packages\Costura.Fody.4.1.0\build\Costura.Fody.props'))" />
+    <Error Condition="!Exists('packages/Costura./Fody.6.9.1/build/Fody.targets')" Text="$([System.String]::Format('$(ErrorText)', 'packages/Costura./Fody.6.9.1/build/Fody.targets'))" />
   </Target>
+  <Import Project="packages/Costura./Fody.6.9.1/build/Fody.targets" Condition="Exists('packages/Costura./Fody.6.9.1/build/Fody.targets')" />
 </Project>

packages.config

@@ -2,5 +2,5 @@
 <packages>
   <package id="Costura.Fody" version="4.1.0" targetFramework="net48" />
   <package id="Extended.Wpf.Toolkit" version="4.0.1" targetFramework="net48" />
-  <package id="Fody" version="6.0.0" targetFramework="net48" developmentDependency="true" />
+  <package id="Fody" version="6.9.1" targetFramework="net481" developmentDependency="true" />
 </packages>