Fix the architecture of pwsh x86-64 helper images
What does this MR do?
Fixes the pwsh architecture. Only x86-64 is supported.
The verification job in the release pipeline caught the error during 16.7.0 https://gitlab.com/gitlab-org/gitlab-runner/-/pipelines/1115955515
I retagged and pushed the pwsh images manually as to not recreate the tag.
Why was this MR needed?
What's the best way to test this MR?
What are the relevant issue numbers?
Edited by Georgi N. Georgiev