Update tox-test.yml ci jobs
The current tox-tests is out of date as the boilerplate now supersedes most of the code in the existing one.
- tag the existing version of the file with v1.0.0 for example
- move all CIs that use tox-test.yml to use the ref: v1.0.0, as described here: https://docs.gitlab.com/ee/ci/yaml/#includefile
- implement a new version of tox-test.yml with the changes you have done in shib-metadata and tlscerts
- tag with with a new version, e.g. v2.0.0
- use the new version in tlscerts and shib-metadata