The pkg.py file is no longer deployed by the build process.

See commit
seco-ne/yocto/layers/meta-seconorth-distro@e79e8579

The old printf-style string formatting syntax using '%' is not
recommended anymore. See for reference:
https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting
https://docs.sourcery.ai/Reference/Python/Default-Rules/replace-interpolation-with-fstring/

Python 3.6 introduced f-strings as a better alternative:
https://docs.python.org/3/reference/lexical_analysis.html#f-strings

Consequently switch to this new syntax for all strings.

A list comprehension can create the list on one line, cutting out the
clutter of declaring an empty list and then appending values.

See for reference:
https://docs.sourcery.ai/Reference/Python/Default-Rules/list-comprehension/

A dictionary comprehension can create the dictionary on one line,
cutting out the clutter of declaring an empty dict and then adding
items.

See for reference:
https://docs.sourcery.ai/Reference/Python/Default-Rules/dict-comprehension/

This script has mostly been copied from alphaplan_fwr.py, but with
different input data (artifacts from the SoftwareStore deploy job) and
without actually importing the data to the Alphaplan database.

Adding a job to the CI-test environment for testing this.