fix(ci): drop cp39 from cibuildwheel matrix by bdraco · Pull Request #1691 · python-zeroconf/python-zeroconf

`pyproject.toml` is now `requires-python = ">=3.10"` after #1688,
so cibuildwheel refused the explicit `CIBW_BUILD=cp39*` matrix entries
with "No build identifiers selected". The cp39 job's failure cancelled
the rest of the wheel matrix (no `fail-fast: false` on the matrix), so
0.149.0 reached PyPI as sdist only. Removing the two stale cp39 entries
lets the next release publish a full wheel set.