chore(deps): update actions/upload-artifact action to v7

Author: renovate[bot]

.github/workflows/mega-linter.yml

@@ -42,7 +42,7 @@ jobs:
       # Upload Mega-Linter artifacts. They will be available on Github action page "Artifacts" section
       - name: Archive production artifacts
         if: success() || failure()
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: Mega-Linter reports
           path: |