Update test suite to db-sync 12.0.0

[jvieiro]

Description

Updates test suite to [email protected] & [email protected]

Breaking changes

Deletes db snapshot of deprecated alonzo-purple testnet, and deprecates the following tests associated with it:

block-transactions-api.test.ts

'should return operation status as invalid when there is an invalid transaction'

account-balance-api.test.ts

'should not count utxos of an invalid tx'

search-transactions-api.test.ts

'Should bring transactions that did not succeeded'

'Should bring transactions with invalid status'

'Should return tx that matches specified coin and is invalid'

A new issue has been created with more specific details to track this: #449

[rhyslbw]

Thanks @jvieiro, looks good 👍