Bump FluentAssertions from 6.7.0 to 6.8.0 (#163)

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 6.7.0 to 6.8.0.
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/develop/AcceptApiChanges.ps1)
- [Commits](fluentassertions/fluentassertions@6.7.0...6.8.0)

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

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/StructLinq.BCL.Tests/StructLinq.BCL.net70.x64.Tests.csproj

@@ -8,7 +8,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="ObjectLayoutInspector" Version="0.1.4" />
-		<PackageReference Include="FluentAssertions" Version="6.7.0" />
+		<PackageReference Include="FluentAssertions" Version="6.8.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
         <PackageReference Include="xunit" Version="2.4.2" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">

src/StructLinq.BCL.Tests/StructLinq.BCL.net70.x86.Tests.csproj

@@ -8,7 +8,7 @@
 
 	<ItemGroup>
 		<PackageReference Include="ObjectLayoutInspector" Version="0.1.4" />
-		<PackageReference Include="FluentAssertions" Version="6.7.0" />
+		<PackageReference Include="FluentAssertions" Version="6.8.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
         <PackageReference Include="xunit" Version="2.4.2" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">

src/StructLinq.Tests/StructLinq.Tests.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
 	<ItemGroup>
-        <PackageReference Include="FluentAssertions" Version="6.7.0" />
+        <PackageReference Include="FluentAssertions" Version="6.8.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.0" />
         <PackageReference Include="xunit" Version="2.4.2" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">