Bump actions/upload-artifact from 5 to 6 (#617)

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

Author: dependabot[bot]

.github/workflows/test.yml

@@ -53,7 +53,7 @@ jobs:
           RUBY_VERSION: ${{ matrix.ruby }}
         run: bundle exec rake test
       - name: Upload report
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: allure-results-${{ matrix.ruby }}-oj-${{ matrix.oj }}
           path: "*/reports/allure-results/"