Bump Npgsql and Npgsql.EntityFrameworkCore.PostgreSQL in /src

Bumps [Npgsql](https://github.com/npgsql/npgsql) and [Npgsql.EntityFrameworkCore.PostgreSQL](https://github.com/npgsql/efcore.pg). These dependencies needed to be updated together.

Updates `Npgsql` from 9.0.2 to 9.0.2
- [Release notes](https://github.com/npgsql/npgsql/releases)
- [Commits](npgsql/npgsql@v9.0.2...v9.0.2)

Updates `Npgsql.EntityFrameworkCore.PostgreSQL` from 9.0.2 to 9.0.3
- [Release notes](https://github.com/npgsql/efcore.pg/releases)
- [Commits](npgsql/efcore.pg@v9.0.2...v9.0.3)

---
updated-dependencies:
- dependency-name: Npgsql
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: Npgsql.EntityFrameworkCore.PostgreSQL
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -12,7 +12,7 @@
     <PackageVersion Include="Microsoft.EntityFrameworkCore.Relational" Version="9.0.1" />
     <PackageVersion Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.1" />
     <PackageVersion Include="Npgsql" Version="9.0.2" />
-    <PackageVersion Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.2" />
+    <PackageVersion Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.3" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageVersion Include="NUnit" Version="4.3.2" />
     <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0" />