Adds coveralls reporting to CI #563

Job	Run time
Unit test (Safari-Remote)	4m 44s
Integration test with react-recurly	55s
Unit test (Edge-Remote)	4m 26s
Check	55s
Unit test (iOS-16-Remote)	2m 51s
Unit test (iOS-15-Remote)	5m 53s
Unit test (Chrome)	1m 32s
Unit test (Android-13-Remote)	6m 25s
Unit test (Firefox)	1m 29s
Unit test (Android-12-Remote)	3m 15s
Unit test (Electron)	1m 34s
Unit test (Android-11-Remote)	10m 26s
End-to-end test (Chrome-Remote)	2m 42s
End-to-end test (Firefox-Remote)	2m 38s
End-to-end test (Safari-Remote)	4m 39s
End-to-end test (Edge-Remote)	3m 24s
End-to-end test (iOS-16-Remote)	5m 18s
End-to-end test (iOS-15-Remote)	5m 26s
End-to-end test (Android-13-Remote)	3m 4s
End-to-end test (Android-12-Remote)	3m 21s
End-to-end test (Android-11-Remote)	7m 37s
Publish artifacts	47s
Verify required checks	1s
	1h 23m 22s

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