Connect Toil CWL conformance CI to CWL project badge generation

[unito-bot]

We should have the CI spit out something we can use to make one of these:

https://badgen.net/https/jutro-4zz18-ytx3kamvs9vo8q5.collections.jutro.arvadosapi.com/required.json?icon=commonwl

We need to host a CI-updated JSON document somewhere (on S3 maybe? as a Gitlab artifact?) that looks like this:

{"subject": "required", "status": "100%", "color": "green"}

mr-c really wants this.

┆Issue is synchronized with this Jira Story
┆Issue Number: TOIL-1690

[mr-c]

https://github.com/common-workflow-language/cwltest?tab=readme-ov-file#id4 "Generate conformance badges using cwltest"