Use Path(__file__).resolve().parents[1] so the test survives being run
from a non-repo-root cwd, matching test_issue1112_csp_google_fonts.py.
Absorbed from PR #1852 follow-up commit 1448f42 by @ChaseFlorell.
Co-authored-by: Chase Florell <ChaseFlorell@users.noreply.github.com>