Bump ZXing.Net from 0.16.8 to 0.16.9 in /Google.Authenticator.Tests

Bumps [ZXing.Net](https://github.com/micjahn/ZXing.Net) from 0.16.8 to 0.16.9.
- [Release notes](https://github.com/micjahn/ZXing.Net/releases)
- [Commits](micjahn/ZXing.Net@v0.16.8.0...v0.16.9.0)

---
updated-dependencies:
- dependency-name: ZXing.Net
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Google.Authenticator.Tests/Google.Authenticator.Tests.csproj

@@ -22,7 +22,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="ZXing.Net" Version="0.16.8" />
+    <PackageReference Include="ZXing.Net" Version="0.16.9" />
     <PackageReference Include="ZXing.Net.Bindings.Magick" Version="0.16.9" />
   </ItemGroup>
   <ItemGroup>