Prevent system service crash after SQL error in AccountManagerService.

Catch broader exception instead of SQLiteCantOpenDatabaseException since
current one ignores some errors during database update.

Return empty list if error happened during getAccountsAsUser call used by SyncManager.

Bug: 354764198
Test: manual
Flag: EXEMPT bugfix
Change-Id: I0f3190e8b284230b5c955b9f43b09c4c291ea73a