CI: skip lint_pkgbuild when generating the srcinfo

.github/workflows/generate-srcinfo.yml

@@ -27,6 +27,8 @@ jobs:
           update: true
 
       - run: |
+          # XXX: linting PKGBUILDs takes a loooong time, this skips it
+          sed -i s/^lint_pkgbuild/#lint_pkgbuild/g /usr/bin/makepkg
           curl --fail -L --retry 5 -o srcinfo.json "https://github.com/$GITHUB_REPOSITORY/releases/download/srcinfo-cache/srcinfo.json"
           python .ci/ci-generate-srcinfo.py --time-limit 19800 msys . srcinfo.json