feat(github-source): Make issues table incremental based on updated field

[erezrokah]

Looks like we can sort issues by updated date ascending and filter by time:
https://github.com/google/go-github/blob/8d4be0b2cf2b8242a0b7e3777232cd0058ae535f/github/issues.go#L188

This should allow making the issues table incremental.

Went over other tables, didn't find another candidate

[duncanmapes]

This would be great. Assuming github_action_runs are already incremental?

[erezrokah]

Assuming github_action_runs are already incremental?

We tried to make it incremental but since we can't sort the results it's not possible (we can't use a value to filter + sort, e.g. create_at then get all runs from a specific date).
However you can filter runs using a table option:

spec:
  access_token: "${GITHUB_PERSONAL_ACCESS_TOKEN}"
  table_options:
    github_workflow_runs:
      created_since: '3 days ago'