FluentAssertions.Analyzers Not Providing Expected Suggestions or Messages

Question

I have a simple C# .NET 6 Xunit test project and am using FluentAssertions to verify the expected outcomes of my tests. I've been trying to use FluentAssertions.Analyzers to analyze these assertions.

However, the following test doesn't trigger any suggestions or yield error/warning/info messages, even though it should. What steps should I take to make the analyzer work?

public class UnitTest1
{
    [Fact]
    public void Test1()
    {
        var blah = true;
        blah.Should().Be(true);
    }
}

This is the .csproj file of the project:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>

    <IsPackable>false</IsPackable>
    <IsTestProject>true</IsTestProject>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="FluentAssertions" Version="6.11.0" />
    <PackageReference Include="FluentAssertions.Analyzers" Version="0.21.0">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
    </PackageReference>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.5.0" />
    <PackageReference Include="xunit" Version="2.4.2" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <PackageReference Include="coverlet.collector" Version="3.2.0">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
  </ItemGroup>

</Project>