lib/test/container-test-driver: Fix extraPythonPackages support

Fix `extraPythonPackages` support in the container test driver.

It triggered the following warning from `nixpkgs`:
```
python3Packages = throw "do not use python3Packages when building Python packages, specify each used package as a separate argument"; # do not remove
```

The following `callPackage` usage triggered the `throw`:

```
hostPackages.python3.pkgs.callPackage
```

The change to a regular `callPackage` i`nvocation fixes this issue.

Added a container test with a popular package to ensure compatibility in the future.

Closes: #5459

lib/test/container-test-driver/driver-module.nix

@@ -5,7 +5,7 @@
   ...
 }:
 let
-  testDriver = hostPkgs.python3.pkgs.callPackage ./package.nix {
+  testDriver = hostPkgs.callPackage ./package.nix {
     inherit (config) extraPythonPackages;
     inherit (hostPkgs.pkgs) util-linux systemd nix;
   };

lib/test/container-test-driver/package.nix

@@ -2,28 +2,24 @@
   extraPythonPackages ? (_ps: [ ]),
   python3Packages,
   python3,
-  buildPythonApplication,
-  setuptools,
   util-linux,
   systemd,
   nix,
-  colorama,
-  junit-xml,
   mkShell,
 }:
 let
-  package = buildPythonApplication {
+  package = python3Packages.buildPythonApplication {
     pname = "test-driver";
     version = "0.0.1";
     propagatedBuildInputs = [
       util-linux
       systemd
-      colorama
-      junit-xml
+      python3Packages.colorama
+      python3Packages.junit-xml
       nix
     ]
     ++ extraPythonPackages python3Packages;
-    nativeBuildInputs = [ setuptools ];
+    nativeBuildInputs = [ python3Packages.setuptools ];
     format = "pyproject";
     src = ./.;
     passthru.devShell = mkShell {