[WIP][FWD][17.0][PERF] mrp: optimize move_finished_ids update to improve backorder creation performance for serial-tracked production

[viinbot]

https://github.com/odoo/odoo/pull/216537
Previously, all move_finished_ids in non-done state were updated regardless of whether their date or date_deadline values actually changed. This led to unnecessary write operations and potential slowdowns, especially in serial-tracked production where each finished product line generates a separate stock.move.

This update improves the performance of completing manufacturing orders that produce serial-tracked finished products.

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Forward-Port-Of: #1113

[viinbot]

@phamgiang2510 cherrypicking of PR #1113 failed, failed with output:

Auto-merging addons/mrp/models/mrp_production.py
CONFLICT (content): Merge conflict in addons/mrp/models/mrp_production.py
error: could not apply 0f2da4a8700... [PERF] mrp: optimize move_finished_ids update to improve backorder
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".

You must resolve the conflicts on the PR manually (and push to this branch).