Update data sync to include all contributions within last 365 days

**Is your feature request related to a problem? Please describe.**
Adding project/chapter contribution heatmaps revealed necessity of commits sync. AFAIR the issues are also being synced only for partial period of time.

**Describe the solution you'd like**
Update sync process to sync all relevant contributions for the last 365 dayss

**Are you going to work on implementing this?**

- [ ] Yes
- [x] No

**Additional context**

@mrkeshav-05 checking if you're interested in this one