feat: pass more params on webhook request

[mrexox]

:zap: Summary

This PR adds more info to webhook request - git information. This allows to create a new build (with all required information) with previous jobs carry-forwarded via the following command:

coveralls done --build-number 123 --carryforward all

NOTE: build-number must be different from the previously reported build. Otherwise no new builds will be created.

:ballot_box_with_check: Checklist

• [x] Add specs

[coveralls-official[bot]]

Pull Request Test Coverage Report for Build 5557299363

• 9 of 9 (100.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.04%) to 93.555%

---

Totals
Change from base Build 5540935344:	0.04%
Covered Lines:	900
Relevant Lines:	962

---

💛 - Coveralls