Bump the test-packages group with 2 updates

Bumps FluentAssertions from 8.6.0 to 8.8.0
Bumps NUnit3TestAdapter from 5.1.0 to 5.2.0

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-version: 8.8.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: test-packages
- dependency-name: NUnit3TestAdapter
  dependency-version: 5.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: test-packages
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -18,8 +18,8 @@
     <!-- Testing -->
     <PackageVersion Include="NUnit" Version="4.4.0" />
     <PackageVersion Include="NUnit.Analyzers" Version="4.10.0" />
-    <PackageVersion Include="NUnit3TestAdapter" Version="5.1.0" />
-    <PackageVersion Include="FluentAssertions" Version="8.6.0" />
+    <PackageVersion Include="NUnit3TestAdapter" Version="5.2.0" />
+    <PackageVersion Include="FluentAssertions" Version="8.8.0" />
     <PackageVersion Include="coverlet.collector" Version="6.0.4" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
   </ItemGroup>