chore(deps): bump dawidd6/action-download-artifact from 7 to 8 (#2157)

Bumps [dawidd6/action-download-artifact](https://github.com/dawidd6/action-download-artifact) from 7 to 8.
- [Release notes](https://github.com/dawidd6/action-download-artifact/releases)
- [Commits](dawidd6/action-download-artifact@v7...v8)

---
updated-dependencies:
- dependency-name: dawidd6/action-download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/release_dispatch.yml

@@ -252,7 +252,7 @@ jobs:
           cache-environment: true
 
       - name: Download artifacts
-        uses: dawidd6/action-download-artifact@v7
+        uses: dawidd6/action-download-artifact@v8
 
       - name: Draft release
         working-directory: modflow6