chore(deps): bump Testcontainers from 3.3.0 to 3.4.0 in /libraries

Bumps [Testcontainers](https://github.com/testcontainers/testcontainers-dotnet) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/testcontainers/testcontainers-dotnet/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-dotnet/blob/develop/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-dotnet@3.3.0...3.4.0)

---
updated-dependencies:
- dependency-name: Testcontainers
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

libraries/tests/AWS.Lambda.Powertools.Idempotency.Tests/AWS.Lambda.Powertools.Idempotency.Tests.csproj

@@ -14,7 +14,7 @@
         <PackageReference Include="Amazon.Lambda.Core" Version="2.1.0" />
         <PackageReference Include="Amazon.Lambda.TestUtilities" Version="2.0.0" />
         <PackageReference Include="NSubstitute" Version="5.0.0" />
-        <PackageReference Include="Testcontainers" Version="3.3.0" />
+        <PackageReference Include="Testcontainers" Version="3.4.0" />
         <PackageReference Include="xunit" Version="2.5.0" />
         <PackageReference Include="xunit.runner.visualstudio" Version="2.5.0">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>