Disable automatic versioning when attaching a retention rule

Steps to reproduce:

1. Define a retention rule named "Retention Rules - PBC Document"
2. Deploy the attached jar
3. As user Joe, create a File document
4. start the workflow WF
5. As user Administrator, validate the task
6. The document is moved to the state Approved which triggers an Automation script which attaches the Retention rule
7. Observe the error in the UI and the task is not finished
8. And this error in the logs

   Caused by: org.nuxeo.ecm.core.api.PropertyException: Failed to invoke operation Retention.AttachRule, Record cannot be checked in: be5ccd01-5816-4ea6-9992-07ae1b3fdc29
           at org.nuxeo.ecm.core.storage.sql.coremodel.SQLDocumentLive.checkIn(SQLDocumentLive.java:588) ~[nuxeo-core-storage-sql-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.versioning.StandardVersioningService.doCheckIn(StandardVersioningService.java:365) ~[nuxeo-core-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.versioning.VersioningComponent.doCheckIn(VersioningComponent.java:450) ~[nuxeo-core-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.api.AbstractSession.checkIn(AbstractSession.java:2023) ~[nuxeo-core-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.api.impl.DocumentModelImpl.checkIn(DocumentModelImpl.java:688) ~[nuxeo-core-api-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.versioning.StandardVersioningService.doAutomaticVersioning(StandardVersioningService.java:504) ~[nuxeo-core-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.versioning.VersioningComponent.doAutomaticVersioning(VersioningComponent.java:460) ~[nuxeo-core-2021.50.12.jar:?]
           at org.nuxeo.ecm.core.api.AbstractSession.saveDocument(AbstractSession.java:1778) ~[nuxeo-core-2021.50.12.jar:?]
           at org.nuxeo.retention.adapters.Record.save(Record.java:120) ~[nuxeo-retention-2021.6.6.jar:?]
           at org.nuxeo.retention.adapters.Record.setRule(Record.java:134) ~[nuxeo-retention-2021.6.6.jar:?]
           at org.nuxeo.retention.service.RetentionManagerImpl.attachRule(RetentionManagerImpl.java:132) ~[nuxeo-retention-2021.6.6.jar:?]
   

Expected behavior: the task is completed and the retention rule is attached to the document