Update actions/upload-artifact digest to ff15f03

Author: renovate[bot]

.github/workflows/ci.yml

@@ -55,7 +55,7 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
 
       - name: Publish Test Results
-        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3
+        uses: actions/upload-artifact@ff15f0306b3f739f7b6fd43fb5d26cd321bd4de5 # v3
         if: always()
         with:
           name: test-results