chore: Update artifact and report names with provider type (#2447)

Author: dspo

.github/workflows/apisix-conformance-test.yml

@@ -114,7 +114,7 @@ jobs:
         if: ${{ github.event_name == 'push' }}
         uses: actions/upload-artifact@v4
         with:
-          name: apisix-ingress-controller-conformance-report.yaml
+          name: apisix-ingress-controller-conformance-report-${{ matrix.provider_type }}.yaml
           path: apisix-ingress-controller-conformance-report.yaml
 
       - name: Format Conformance Test Report