Resolve "[CI] Adding dev dependencies upgrades Drupal core minor"

Sally Youngrequested to merge
3591605-ci-adding-dev-dependencies-upgrades-drupal-core-minor into 1.x

Fetches the correct drupal/core-dev package in CI

Testing instructions

Verify the correct version of core-dev is pulled in during a job: https://git.drupalcode.org/project/canvas/-/jobs/10052050

Closes #3591605 (closed)

Edited by Sally Young

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