Bump FluentAssertions from 8.2.0 to 8.9.0

---
updated-dependencies:
- dependency-name: FluentAssertions
  dependency-version: 8.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: FluentAssertions
  dependency-version: 8.9.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Source/EasyNetQ.Management.Client.IntegrationTests/EasyNetQ.Management.Client.IntegrationTests.csproj

@@ -13,7 +13,7 @@
 
   <ItemGroup>
     <PackageReference Include="EasyNetQ" Version="8.0.0-beta96" />
-    <PackageReference Include="FluentAssertions" Version="8.2.0" />
+    <PackageReference Include="FluentAssertions" Version="8.9.0" />
     <PackageReference Include="docker.dotnet" Version="3.125.15" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="xunit" Version="2.8.1" />