build(deps): bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/release.yml

@@ -84,7 +84,7 @@ jobs:
           echo "install task"
           go install github.com/go-task/task/v3/cmd/task@latest
       - name: "download checksums.txt"
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with: { name: checksums.txt, path: dist }
       - run: ./hack/scripts/gentap.sh
       - name: Build docs