Add github actions to trigger KGCL agent to ODK

~[`onto-crawler`](https://github.com/hrshdhgd/onto-crawler) (name to be changed soon)~
[`ontobot-change-agent`](https://github.com/hrshdhgd/ontobot-change-agent) basically is a tool which runs KGCL commands to update ontology resources.

cc: @cmungall

Start by reading the issue-linked onto-crawler and ontobot-change-agent repositories to understand how the KGCL agent updates ontology resources. Then inspect this repository's existing GitHub Actions configuration, if any. Done means a documented GitHub Actions workflow triggers the agent against the intended ODK resources, but the issue does not specify the event, inputs, or validation steps.

Written by the indexing model from the issue text.