CI: Add dependency between prepare_environment and build
- Explicitly make build depend on prepare_environmnt, so it will fail when the artifacts of prepare_environment are missing
- Increase timeout of prepare_environment artifacts
Hi all, Gitlab will be set in maintenance mode on Friday 29/11/2024 from 08:45 AM CET with the intention of finishing by the 10:45 PM CET of Friday 29/11/2024