Use Gitaly 0.100.1 in 10-8-stable

What does this MR do?

Uses Gitaly 0.100.1 in 10-8-stable. We cut this gitaly release specifically to address We can't use the same Gitaly version in master because there we are further ahead than Gitaly 0.100.x.

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

What are the relevant issue numbers?

Related to

Edited by Jacob Vosmaer

Merge request reports