Replace initial deployment step
What does this MR do?
Replaces initial deployment step.
Percentage is calculated by how many nodes we've completed some
operation on. After we excluded canary deployer for main stage
migrations (https://ops.gitlab.net/gitlab-com/gl-infra/deployer/-/commit/0ba6f9402438ddb1da5e5428d3793eef9e5af9b5), only one node was left to operate on, making the
gprd-migrations 100%
the initial deployment step.
Related to gitlab-com/gl-infra/delivery#1987 (closed)
Author Check-list
- [-] Has documentation been updated?