fix: unknown column error while updating value of maintain-stock in item master (backport #32205)

[mergify]

This is an automatic backport of pull request #32205 done by Mergify.
Cherry-pick of bf1fa01 has failed:

On branch mergify/bp/version-13-hotfix/pr-32205
Your branch is ahead of 'origin/version-13-hotfix' by 1 commit.
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You are currently cherry-picking commit bf1fa014f4.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
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	both modified:   erpnext/stock/doctype/item/test_item.py

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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