Update 7 files

- /backend/utilities/exceptions.sql
- /endpoints/account-balances/get_balance_history.sql
- /endpoints/account-balances/get_history_aggregation.sql
- /endpoints/transfers/get_transfer_statistics.sql
- /tests/tavern/get_balance_history/negative/negative_zero_block_num.json
- /tests/tavern/get_balance_history/negative/negative_block_num.tavern.yaml
- /tests/tavern/get_balance_history/negative/zero_block_num.tavern.yaml