Make Last-Translator a committer

[m-aciek]

Resolving last translator on Transifex while commiting potentially would encourage translators and would make contributions graph closer to truth.

I think of such an algorithm (for first iteration at least):

• find first updated PO file in git diff,
• get last translator from this PO file metadata (Last-Translator field),
• configure git commiter using last translator data [1],
• commit as before [2].

[1]

python-docs-pl/.github/workflows/update-and-build.yml

Lines 33 to 35 in 4a681bb

	- run: git config --local user.email 'maciej.olko@gmail.com'
	name: Run git config --local user.email '…'
	- run: git config --local user.name "GitHub Action's update-translation job"

[2]

python-docs-pl/.github/workflows/update-and-build.yml

Line 37 in 4a681bb

- run: git commit -m 'Update translation from Transifex' || true

[m-aciek]

Alternative: migrate to Weblate.

[m-aciek]

Alternative: pass as a feature request for Transifex integration.