Migrate all the time-percentage feature flags on GitLab SaaS

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We have deprecated time-percentage feature flags with the MR: gitlab-com/chatops!400 (merged)

As a preparation to remove the current time-percentage feature flags, we need to migrate the existing 140 ones.

  1. The 128 100% enabled ones can be fully enabled globally. We should also inform the teams owning them. Maybe we can also delete them in case that was forgotten and they are not referenced in the code.
  2. The < 100% ones should be migrated to percentage of actors instead. See: !132324 (merged)

CC: @tkuah @arturoherrero

Edited by 🤖 GitLab Bot 🤖