test(e2e): add point-in-time recovery (PITR) e2e test with backup plugin#33

Agalin merged 1 commit intooperasoftware:mainoperasoftware/cnpg-plugin-pgbackrest:mainfrom

ermakov-oleg:test-pitr-restoreermakov-oleg/cnpg-plugin-pgbackrest:test-pitr-restoreCopy head branch name to clipboard