ci(deps): bump actions/upload-artifact from 6 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 6 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/main.yml

@@ -80,7 +80,7 @@ jobs:
       # Build
       - run: dotnet build --no-restore -c Release ${{ env.msbuild-version-args }}
       - name: Upload build artifacts
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: build
           path: |
@@ -157,7 +157,7 @@ jobs:
       # Pack
       - run: dotnet pack --no-restore --no-build -c Release ${{ needs.build.outputs.msbuild-version-args }}
       - name: Upload release artifacts
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: release-${{ needs.determine-version.outputs.package-version }}
           path: |