chore: Parse Kopia restore result

[e-sumin]

Change Overview

We already have parsing of Kopia progress lines, this PR introduces parsing of final stats of restore operation.

Pull request type

Please check the type of change your PR introduces:

• [ ] :construction: Work in Progress
• [ ] :rainbow: Refactoring (no functional changes, no api changes)
• [x] :hamster: Trivial/Minor
• [ ] :bug: Bugfix
• [ ] :sunflower: Feature
• [ ] :world_map: Documentation
• [ ] :robot: Test
• [ ] :building_construction: Build

Issues

• fixes #issue-number

Test Plan

• [ ] :muscle: Manual
• [x] :zap: Unit test
• [ ] :green_heart: E2E