Bump FluentAssertions from 6.4.0 to 7.2.0#2233

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dependabot/nuget/Ix.NET/Source/System.Interactive.Async.Providers.Tests/multi-0ab36e9738dotnet/reactive:dependabot/nuget/Ix.NET/Source/System.Interactive.Async.Providers.Tests/multi-0ab36e9738Copy head branch name to clipboard