chore(deps): update dependency fluentassertions to 8.5.0

Author: renovate[bot]

src/Akavache.Tests/Akavache.Tests.csproj

@@ -23,7 +23,7 @@
     <PackageReference Include="ReactiveUI.Testing" Version="20.3.1" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.11" />
-    <PackageReference Include="FluentAssertions" Version="8.3.0" />
+    <PackageReference Include="FluentAssertions" Version="8.5.0" />
     <PackageReference Include="DiffEngine" Version="16.2.3" />
     <PackageReference Include="PublicApiGenerator" Version="11.4.6" />
     <PackageReference Include="Verify.Xunit" Version="30.4.0" />