Bump FluentAssertions from 5.10.2 to 5.10.3 (#304)

Bumps [FluentAssertions](https://github.com/fluentassertions/fluentassertions) from 5.10.2 to 5.10.3.
- [Release notes](https://github.com/fluentassertions/fluentassertions/releases)
- [Changelog](https://github.com/fluentassertions/fluentassertions/blob/develop/AcceptApiChanges.ps1)
- [Commits](fluentassertions/fluentassertions@5.10.2...5.10.3)

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

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

Author: dependabot[bot]

Directory.Build.targets

@@ -25,7 +25,7 @@
         <PackageReference Update="Microsoft.NET.Test.Sdk" Version="16.5.0" />
         <PackageReference Update="xunit.runner.visualstudio" Version="2.4.1" />
         <PackageReference Update="xunit" Version="2.4.1" />
-        <PackageReference Update="FluentAssertions" Version="5.10.2" />
+        <PackageReference Update="FluentAssertions" Version="5.10.3" />
         <PackageReference Update="NSubstitute" Version="4.2.1" />
         <PackageReference Update="DryIoc.dll" Version="4.2.5" />
         <PackageReference Update="DryIoc.Microsoft.DependencyInjection " Version="4.0.0" />