Add Poland regions

[Bartlomiejsz]

Description (*)

Currently there are only few countries which have prefilled regions in Magento. This PR adds regions for Poland

Fixed Issues (if relevant)

Manual testing scenarios (*)

1. Go to either checkout or customer address edit
2. Select Poland as country and observer regions field - it should be select with regions allowed

Questions or comments

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds are green)

[m2-assistant]

Hi @Bartlomiejsz. Thank you for your contribution
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[magento-engcom-team]

Hi @VladimirZaets, thank you for the review.
ENGCOM-6281 has been created to process this Pull Request

[engcom-Alfa]

✔️ QA Passed

[magento-engcom-team]

Hi @dmytro-ch, thank you for the review.
ENGCOM-6281 has been created to process this Pull Request

[m2-assistant]

Hi @Bartlomiejsz, thank you for your contribution!
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