Releasing `ciecplib`

The instructions below detail how to finalise a new release for version {X.Y.Z}.

In all commands below that placeholder should be replaced with an actual release version.

1. Update the packaging files

Create a new branch on which to update the OS packaging files:
```
git checkout -b finalise-{X.Y.Z}
```
Bump the version in the Python package ciecplib/__init__.py file
Bump versions and add changelog entries in OS packaging files:
- debian/changelog
- rpm/python-ciecplib.spec
and then commit the changes to the branch.
Push this branch to your fork:
```
git push -u origin finalise-{X.Y.Z}
```
Open a merge request on GitHub to finalise the packaging update.

Draft release notes by looking through the merge requests associated with the relevant milestone on GitHub.
Create an annotated, signed tag in git using the release notes as the tag message:
```
git tag --sign {X.Y.Z}
```
Push the tag to the project on GitLab:
```
git push -u upstream {X.Y.Z}
```

Create a Release on GitLab, copying the same release notes from the tag message.

Make sure and correctly associated the correct Tag to the Release.

Generate a new source distribution and binary wheel for this release:
```
git clean -dfX
python -m build --sdist --wheel
```

Upload these distributions to PyPI:

python -m twine upload --sign dist/ciecplib-{X.Y.Z}*