Integrate `epic-analysis` with GH flows

[milanaleksic]

I've been thinking about certain flow which might automate nice dependency graph information:

1. add a workflow build recipe that will trigger ghh epic analysis on that repo
2. ghh epic-analysis should get a flag --full which will mean "fully analyse all the epics"
3. in that flow ghh would list all the open epic issues in the repo and then for each one of them produce an output graph analysis, with logged status errors if heuristic checks fail
4. ghh would receive a flag --update-epic which would then somehow trigger update on some comment on an epic where the source code of the graph (for change detection) and the graph itself would be placed
5. for issues that are under review, there should be a :magnifier: emoji inside the listing of tasks in the epic to point to the fact that it is "under review"
6. for issues that are under development, there should be a :hammer: emoji inside the listing of tasks in the epic to point to the fact that it is "under development"