nuget: Bump ValveKeyValue from 0.13.1.398 to 0.20.0.417

---
updated-dependencies:
- dependency-name: ValveKeyValue
  dependency-version: 0.20.0.417
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/UnturnedRedistUpdateTool/UnturnedRedistUpdateTool.csproj

@@ -19,7 +19,7 @@
   <ItemGroup>
     <PackageReference Include="BepInEx.AssemblyPublicizer" Version="0.4.3" />
     <PackageReference Include="SharpZipLib" Version="1.4.2"/>
-    <PackageReference Include="ValveKeyValue" Version="0.13.1.398"/>
+    <PackageReference Include="ValveKeyValue" Version="0.20.0.417"/>
   </ItemGroup>
 
 </Project>