Feat: Add column for git sha or version tag

[anoop2811]

As a developer, When I run my tests, And use fern for reporting, And have committed changes Then the git sha should be a tag or a column in the report

For unpushed change, We need to make a decision on what to show. Maybe as a "dirty" as we have no way to referring back to the changes if the commit is not pushed or if the files are not committed in the first place