The following changes should be implemented in dags/hivemind_etl_helpers/src/db/github/workflows.
### Tasks
- [ ] Create a class `GithubSummaryWorkflow`
- [ ] Create a public method `start`. See [pseudo code](https://www.notion.so/Github-Vectorize-Summary-fe006094d382427eb1daf746a9055849?pvs=21).
- [ ] Create a private method `_summarize`. See [pseudo code](https://www.notion.so/Github-Vectorize-Summary-fe006094d382427eb1daf746a9055849?pvs=21).
- [ ] Create the required test cases
Part of the Github Vectorize (Summary). Please read this document before starting.
The following changes should be implemented in
dags/hivemind_etl_helpers/src/db/github/workflows
.Note: file coverage should be 100%.