ci(provd): adding workflow for provd pr's #1

Job	Run time
flutter-analyze	2m 12s
bootstrap (ubuntu_bootstrap_test.dart)	5m 51s
flutter-format	1m 35s
bootstrap (screenshot_test.dart)	5m 4s
flutter-coverage (ubuntu_bootstrap)	3m 52s
flutter-mocks	4m 42s
flutter-coverage (ubuntu_init)	2m 16s
flutter-tests	5m 12s
flutter-coverage (ubuntu_provision)	2m 42s
flutter-coverage (ubuntu_utils)	2m 10s
Go: Code sanity	46s
Go: Tests	58s
flutter-coverage (ubuntu_wizard)	2m 6s
init (ubuntu_init_test.dart)	2m 55s
l10n	1m 40s
init (screenshot_test.dart)	2m 52s
	46m 53s

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