fix(e2e): avoid uploading multiple artifacts with same name (cloudnat…

…ive-pg#3583)

This is needed to support upload-artifact and download-artifact v4.

Signed-off-by: Leonardo Cecchi <leonardo.cecchi@enterprisedb.com>

.github/workflows/continuous-delivery.yml

@@ -659,7 +659,7 @@ jobs:
         if: (always() && !cancelled())
         uses: actions/upload-artifact@v4
         with:
-          name: testartifacts-local
+          name: testartifacts-${{ env.MATRIX }}
           path: testartifacts-${{ env.MATRIX }}/
           retention-days: 7
       -