Bump actions/download-artifact from 7 to 8

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

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/dotnet.yml

@@ -87,7 +87,7 @@ jobs:
         env:
           NUGET_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: Download Package artifact
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: ${{ github.event.repository.name }}.nupkg
       - name: Publish to GitHub Package Registry
@@ -105,7 +105,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v5
       - name: Download Package artifact
-        uses: actions/download-artifact@v7
+        uses: actions/download-artifact@v8
         with:
           name: ${{ github.event.repository.name }}.nupkg
       - name: Upload Release Assets