fix(ci): fix broken nighly jobs (#659)

Fixes the broken nightly builds. Look at solved results
[here](https://github.com/metatypedev/metatype/actions/runs/8533669013).

#### Motivation and context

Nightly builds were broken due to oversight during the #571 fixes.

#### Migration notes

__No changes required__

### Checklist

- [ ] The change come with new or modified tests
- [ ] Hard-to-understand functions have explanatory comments
- [ ] End-user documentation is updated to reflect the change

Author: Yohe-Am

.github/workflows/nightly.yml

@@ -52,7 +52,7 @@ jobs:
           touch "digests/prd/${digest#sha256:}"
       - uses: actions/upload-artifact@v4
         with:
-          name: digests
+          name: digests-${{ matrix.runner }}
           path: ./digests/*
           if-no-files-found: error
           retention-days: 1
@@ -72,7 +72,8 @@ jobs:
     steps:
       - uses: actions/download-artifact@v4
         with:
-          name: digests
+          pattern: digests-*
+          merge-multiple: true
           path: ./digests
       - uses: docker/setup-buildx-action@v3
       - uses: docker/login-action@v3