fix: GSTR-1 Reports not showing any data (backport #27373)

[mergify]

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This is an automatic backport of pull request #27373 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of e1f55df has failed:

On branch mergify/bp/version-13-hotfix/pr-27373
Your branch is up to date with 'origin/version-13-hotfix'.

You are currently cherry-picking commit e1f55df4d7.
  (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:
  (use "git add <file>..." to mark resolution)
	both modified:   erpnext/regional/report/gstr_1/gstr_1.py

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

Cherry-pick of 6dfcc1e has failed:

On branch mergify/bp/version-13-hotfix/pr-27373
Your branch is ahead of 'origin/version-13-hotfix' by 1 commit.
  (use "git push" to publish your local commits)

You are currently cherry-picking commit 6dfcc1e2ae.
  (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:
  (use "git add <file>..." to mark resolution)
	both modified:   erpnext/regional/report/gstr_1/gstr_1.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/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally