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The current tox-tests is out of date as the boilerplate now supersedes most of the code in the existing one.

1. tag the existing version of the file with v1.0.0 for example
2. 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
3. implement a new version of tox-test.yml with the changes you have done in shib-metadata and tlscerts
4. tag with with a new version, e.g. v2.0.0
5. use the new version in tlscerts and shib-metadata