Bump the actions group across 1 directory with 2 updates (#21)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Daniel McCloy <dan@mccloy.info>

Author: dependabot[bot]

.github/workflows/cd.yml

@@ -43,13 +43,13 @@ jobs:
     if: github.event_name == 'release' && github.event.action == 'published'
 
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v5
         with:
           name: Packages
           path: dist
 
       - name: Generate artifact attestation for sdist and wheel
-        uses: actions/attest-build-provenance@v2.3.0
+        uses: actions/attest-build-provenance@v2.4.0
         with:
           subject-path: "dist/*"