SERVER-93477, PR allows yml files to configure the number of retries network_error_and_txn_override.js will perform before abandoning a transaction.

However, the field overrideRetryAttempts is already used for non-transaction retries. In some tests, it is normal for the txn override to take a number of retries to succeed (e.g., after a stepdown). This may require a different number of retries to an non-transaction override variant.

BF-34753 identified that some suites specify overrideRetryAttempts, at a value lower than the default txn override value, leading to failures.

As such, a separate variable should be used for txn retries.