chore(deps): Bump FluentAssertions from 8.8.0 to 8.9.0

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

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

Author: dependabot[bot]

test/Dotnet.Samples.AspNetCore.WebApi.Tests/Dotnet.Samples.AspNetCore.WebApi.Tests.csproj

@@ -11,7 +11,7 @@
   <ItemGroup Label="Test dependencies">
   <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" PrivateAssets="all" />
   <PackageReference Include="Moq" Version="4.20.72" PrivateAssets="all" />
-  <PackageReference Include="FluentAssertions" Version="8.8.0" PrivateAssets="all" />
+  <PackageReference Include="FluentAssertions" Version="8.9.0" PrivateAssets="all" />
   <PackageReference Include="xunit" Version="2.9.3" PrivateAssets="all" />
   <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" PrivateAssets="all" />
   <PackageReference Include="coverlet.collector" Version="8.0.0" PrivateAssets="all" />

test/Dotnet.Samples.AspNetCore.WebApi.Tests/packages.lock.json

@@ -10,9 +10,9 @@
       },
       "FluentAssertions": {
         "type": "Direct",
-        "requested": "[8.8.0, )",
-        "resolved": "8.8.0",
-        "contentHash": "m0kwcqBwvVel03FuMa7Ozo/oTaxYbjeNlcOhQFkyQpwX/8wks6RNl/Jnn58DCZVs6c2oG1RsCZw7HfKSaxLm3w=="
+        "requested": "[8.9.0, )",
+        "resolved": "8.9.0",
+        "contentHash": "Y5RDjxaVlxWX2yy0X/ay1tJjSKMOtjepSb83mmfngFS63hm3LsoZNj6nhmImzm1ifRmpF9ouvmHjx9nNwnkpDg=="
       },
       "Microsoft.NET.Test.Sdk": {
         "type": "Direct",