FIXES FRMW-2888
**What**
Since the migration scripts runner run as part of the migrate script, we were cleaning up the resources but we didn't take into consideration that links are loading automagically by just importing the links. The issue is that once a link have been imported, the next import will rely on the cached module and therefore when cleaning the resources, re importing those links is not enough. Instead, we are now treating the run-script as a separate command that we run during running the migration so that resources are isolated and loaded according to the need of each script themselves
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