only target P routers in relevant steps
add TT number and commit comments to playbook executions
update unit tests

reformat some code
add PyYAML type hints
update the use of the LibreNMS client in the iBGP mesh workflow
update the conftest sample configuration fixture

fill in workflow steps for removing configuration from a terminated router, and update the unit test

slight oversight I copy-pasted all over the place..

Added lab data to data direcory and got isis-metric from user/input file intead of setting to default 9000.