test(ci): upload all the nextcloud logs in cypress tests

Use different names for the artifacts so they all become available.

Also rename the screenshot artifacts
to clearify which version they are for.

Signed-off-by: Max <max@nextcloud.com>

.github/workflows/cypress.yml

@@ -214,15 +214,15 @@ jobs:
         uses: actions/upload-artifact@v3
         if: failure()
         with:
-          name: Upload screenshots
+          name: Screenshots.${{ matrix.server-versions }}
           path: apps/${{ env.APP_NAME }}/cypress/screenshots/
           retention-days: 5
 
       - name: Upload nextcloud logs
         uses: actions/upload-artifact@v3
         if: failure()
         with:
-          name: Upload nextcloud log
+          name: ${{ matrix.server-versions }}.log
           path: data/nextcloud.log
           retention-days: 5