chore(deps): update dependency npgsql to 9.0.4

Author: renovate[bot]

Directory.Packages.props

@@ -39,7 +39,7 @@
     <PackageVersion Include="Microsoft.OpenApi" Version="1.6.24" />
     <PackageVersion Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageVersion Include="NodaTime.Serialization.JsonNet" Version="3.2.0" />
-    <PackageVersion Include="Npgsql" Version="9.0.3" />
+    <PackageVersion Include="Npgsql" Version="9.0.4" />
     <PackageVersion Include="Npgsql.OpenTelemetry" Version="9.0.3" />
     <PackageVersion Include="OpenTelemetry" Version="1.12.0" />
     <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.12.0" />