[16.0][BP][IMP] connector_extension: remove cr.commit() from bind_export

[deeniiz]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 44.28%. Comparing base (20d034b) to head (8ddca89).

Files with missing lines	Patch %	Lines
connector_extension/components/binder.py	20.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             16.0     #893   +/-   ##
=======================================
  Coverage   44.28%   44.28%           
=======================================
  Files         317      317           
  Lines        6294     6294           
  Branches     1000      999    -1     
=======================================
  Hits         2787     2787           
  Misses       3486     3486           
  Partials       21       21           

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[eantones]

Superseded by #895.

This PR's approach (removing cr.commit() from bind_export and relying on _retry_unique_violation) was rejected because it breaks the eager-commit anti-orphan guarantee: if the job fails after SAP has already created the external record, rollback loses the binding and the next retry creates a duplicate in SAP. _retry_unique_violation only protects against concurrent-job races (and even that protection is weak under PostgreSQL REPEATABLE READ since the unique constraint is on (backend_id, external_id), where external_id is assigned by SAP — duplicates in SAP can't be detected client-side).

Replaced by #895, which keeps the eager cr.commit() and instead uses the official OCA toggle allow_commit=True on the queue.job.function records (introduced by OCA/queue#910), with an additional cursor-rebind workaround at connector_extension/models/binding/binding.py for Job.in_temporary_env()'s args limitation (acknowledged by guewen in OCA/queue#889).