Bump Npgsql from 4.0.6 to 4.0.7

Bumps [Npgsql](https://github.com/npgsql/npgsql) from 4.0.6 to 4.0.7.
- [Release notes](https://github.com/npgsql/npgsql/releases)
- [Commits](npgsql/npgsql@v4.0.6...v4.0.7)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

src/DotNet.Testcontainers.Tests/DotNet.Testcontainers.Tests.csproj

@@ -9,7 +9,7 @@
     <PackageReference Include="LanguageExt.Core" Version="3.1.24" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.1.1" />
     <PackageReference Include="MySql.Data" Version="8.0.16" />
-    <PackageReference Include="Npgsql" Version="4.0.6" />
+    <PackageReference Include="Npgsql" Version="4.0.7" />
     <PackageReference Include="System.Data.SqlClient" Version="4.6.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
     <PackageReference Include="xunit" Version="2.4.1" />