lint.sh: run gettext builder instead if script

Running the script brings unneeded extra requirements

scripts/lint.sh

@@ -18,18 +18,23 @@ cd "$rootdir"
 mkdir -p logs
 touch logs/sphinxlint.txt
 
-# Disable literal blocks and update PO
-sed -i "/^\s*'literal-block',/s/ '/ #'/" cpython/Doc/conf.py
-./scripts/generate_templates.sh
-sphinx-intl update -d cpython/Doc/locale -p cpython/Doc/build/gettext -l pt_BR
+cd cpython/Doc
 
-cd cpython/Doc/locale/${PYDOC_LANGUAGE}/LC_MESSAGES
+# Disable literal blocks and update PO
+sed -i "/^\s*'literal-block',/s/ '/ #'/" conf.py
+# TODO: use `make -C .. gettext` when there are only Python >= 3.12
+opts='-E -b gettext -D gettext_compact=0 -d build/.doctrees . build/gettext' 
+make -C .. build ALLSPHINXOPTS="$opts"
+# Update translation files with latest POT
+sphinx-intl update -d locale -p build/gettext -l pt_BR
+
+cd ${PYDOC_LANGUAGE}/LC_MESSAGES
 sphinx-lint | tee $(realpath "$rootdir/logs/sphinxlint.txt")
 
 # Undo changes that disabled literal blocks
 git checkout *.po
 
-cd $OLDPWD
+cd "$rootdir"
 
 # Remove empty file
 if [ ! -s logs/sphinxlint.txt ]; then