Apologies

* Updates to GHA workflows.

* Minor improvements to unit tests based on code review.
* Upgrade to Poetry v1.8.0 and make related adjustments.
* Disable Python keyring via poetry.toml.
* Update Poetry install instructions in DEVELOPER.md.
* Pull in latest version of run-script-framework.
* Upgrade to gha-shared-workflowsv4 with new Poetry setup.
* Add support for 'run outdated' and update dependencies.

* Update jinja2 to address CVE-2024-22195 from Dependabot.

* Update urllib3 to address Dependabot warnings.
* Upgrade to Poetry v1.7.0 for official Python 3.12 support.

* Upgrade major dependencies.
* Upgrade build process to Poetry v1.6.1.
* Add support for Python v3.12 and drop support for v3.8.

* Fix checktabs to be safe for file named '-'
* Upgrade to Poetry v1.5.1 and update other dependencies.