chore(deps): bump actions/upload-artifact from 4 to 7 (#3824)

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/backend-tests.yaml

@@ -115,7 +115,7 @@ jobs:
 
       - name: Upload coverage artifact
         if: needs.changes.outputs.backend == 'true' && !cancelled()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: backend-coverage-${{ matrix.artifact }}
           path: src/backend/coverage/

.github/workflows/puterjs-tests.yaml

@@ -157,7 +157,7 @@ jobs:
 
       - name: Upload coverage artifact
         if: needs.changes.outputs.puterjs == 'true' && !cancelled()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: puterjs-coverage-${{ matrix.artifact }}
           path: src/puter-js/coverage/coverage-*.json