Bump FluentAssertions from 6.12.0 to 8.2.0

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 6.12.0 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@6.12.0...8.2.0)

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-version: 8.2.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

test/UnitTests/UnitTests.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
         <TargetFramework>net8.0</TargetFramework>
@@ -11,7 +11,7 @@
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="FluentAssertions" Version="8.2.0" />
         <PackageReference Include="FluentAssertions.Analyzers" Version="0.30.0">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>