pre-commit: Fix skip option in codespell hook
A glob must be used to ensure tests data are excluded from codespell processing.
See https://jenkins.softwareheritage.org/job/DENV/job/run-all-tests/1616/artifact/swh-graph.log.
A glob must be used to ensure tests data are excluded from codespell processing.
See https://jenkins.softwareheritage.org/job/DENV/job/run-all-tests/1616/artifact/swh-graph.log.