Merge bitcoin#33541: Release: 30.0rc3 translations update

71ee016 qt: 30.0rc3 translations update (Hennadii Stepanov)

Pull request description:

  This PR updates the Polish (pl) translation and addresses [this](bitcoin#33275 (comment)) comment.

  Updates for other languages have been skipped, as I believe the review effort would not be worthwhile at this stage of the release process.

ACKs for top commit:
  maflcko:
    Though, this lgtm ACK 71ee016
  janb84:
    ACK 71ee016

Tree-SHA512: e9ee8146542d0928f5ddaac5b2cb0c0032cd7d236fc19b38fd4ebe91e13eccdfa7d25ff279376c3f27f0bc461729b2c0574fedbb670a2555bc7a534e5ec0cd76

Author: fanquake