Set object id when calling objstorage.add

We are removing support for the objstorage computing the object id itself.

Related to swh-objstorage#2309

---

Migrated from D8008 (view on Phabricator)

Build is green

Patch application report for D8008 (id=28861)

Rebasing onto 5916d8b5...

Current branch diff-target is up to date.

Changes applied before test

commit e31bdb26a8278e427a877ee1a5dd4ae8c0600124
Author: Nicolas Dandrimont <nicolas@dandrimont.eu>
Date:   Tue Jun 21 14:35:03 2022 +0200

    Set object id when calling objstorage.add
    
    We are removing support for the objstorage computing the object id itself.

See https://jenkins.softwareheritage.org/job/DDATASET/job/tests-on-diff/146/ for more details.

Merge request was accepted

approved this merge request

Merge request was merged

closed