Update dependency Microsoft.Identity.Web to 3.9.4

Author: renovate[bot]

src/DfE.ExternalApplications.Infrastructure/DfE.ExternalApplications.Infrastructure.csproj

@@ -15,7 +15,7 @@
 		<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.18" />
 		<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.18" />
 		<PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="8.0.0" />
-		<PackageReference Include="Microsoft.Identity.Web" Version="3.9.1" />
+		<PackageReference Include="Microsoft.Identity.Web" Version="3.9.4" />
 	</ItemGroup>
 
   <ItemGroup>