chore(deps): bump the all group with 3 updates

Bumps the all group with 3 updates: [FluentAssertions](https://github.com/fluentassertions/fluentassertions), [MSTest.TestFramework](https://github.com/microsoft/testfx) and [Verify.MSTest](https://github.com/VerifyTests/Verify).


Updates `FluentAssertions` from 8.1.1 to 8.2.0
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/main/AcceptApiChanges.ps1)
- [Commits](fluentassertions/fluentassertions@8.1.1...8.2.0)

Updates `MSTest.TestFramework` from 3.8.2 to 3.8.2
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.8.2...v3.8.2)

Updates `Verify.MSTest` from 28.13.0 to 28.16.0
- [Release notes](https://github.com/VerifyTests/Verify/releases)
- [Commits](VerifyTests/Verify@28.13.0...28.16.0)

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
- dependency-name: MSTest.TestFramework
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: all
- dependency-name: Verify.MSTest
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: all
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -16,11 +16,11 @@
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageVersion Include="MSTest.TestAdapter" Version="3.8.2" />
     <PackageVersion Include="MSTest.TestFramework" Version="3.8.2" />
-    <PackageVersion Include="FluentAssertions" Version="8.1.1" />
+    <PackageVersion Include="FluentAssertions" Version="8.2.0" />
     <PackageVersion Include="Avalonia" Version="11.2.5" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.SourceGenerators.Testing.MSTest" Version="1.1.2" />
     <PackageVersion Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.13.0" />
-    <PackageVersion Include="Verify.MSTest" Version="28.13.0" />
+    <PackageVersion Include="Verify.MSTest" Version="28.16.0" />
     <PackageVersion Include="Verify.SourceGenerators" Version="2.5.0" />
     <PackageVersion Include="H.Generators.Tests.Extensions" Version="1.24.2" />
   </ItemGroup>