Bump actions/upload-artifact from 4 to 6 (#633)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci_MASTER.yml

@@ -113,7 +113,7 @@ jobs:
 
       - name: Upload Artifact 📦
         if: ${{ steps.gate.outputs.code == 'true' }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ format('assets-{0}', steps.branch.outputs.branch_name) }}
           path: assets

.github/workflows/ci_PR.yml

@@ -119,7 +119,7 @@ jobs:
 
       - name: Upload preview artifact
         if: ${{ always() && steps.changed.outputs.code == 'true' }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: preview-stats
           path: |