Enable transaction support in Gitaly in tests
What does this MR do and why?
Gitaly has a configuration flag that enables support for transactions with ACID properties. With the flag enabled, Gitaly runs each RPC in a transaction leading to improved reliability.
As a preliminary step towards rolling out transactions, this commit enables the use of transactions in test
Part of gitaly#5664
Closes gitaly#6021 (closed)
Edited by Sami Hiltunen