migration tests are not failing ci when a test is failing

[dotansimha]

Noticed while working on another PR, the pipeline defined in:
https://github.com/graphql-hive/console/blob/main/.github/workflows/tests-db-migrations.yaml
Does not fail CI when there are test errors

example: https://github.com/graphql-hive/console/actions/runs/14100844437/job/39496626754?pr=6657