Bump actions/attest-build-provenance from 1.4.1 to 1.4.2 in the githu…

…b-actions group (#449)

.github/workflows/cd.yml

@@ -31,7 +31,7 @@ jobs:
           path: dist
           merge-multiple: true
       - name: Generate artifact attestation for sdist and wheel(s)
-        uses: actions/[email protected].1
+        uses: actions/[email protected].2
         with:
           subject-path: "dist/*"
       - uses: pypa/gh-action-pypi-publish@release/v1