Bump System.IO.Abstractions.TestingHelpers from 22.0.15 to 22.0.16

---
updated-dependencies:
- dependency-name: System.IO.Abstractions.TestingHelpers
  dependency-version: 22.0.16
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Tests/Tests.csproj

@@ -34,7 +34,7 @@
     </PackageReference>
     <PackageReference Include="NUnit3TestAdapter" Version="5.1.0" />
     <PackageReference Include="System.IO.Abstractions" Version="22.0.16" />
-    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="22.0.15" />
+    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="22.0.16" />
   </ItemGroup>
 
   <ItemGroup>