feat: add e2e test for Cardano node '9.0.0' in CI

Author: jpraynaud

.github/workflows/ci.yml

@@ -289,7 +289,8 @@ jobs:
       matrix:
         mode: ["std"]
         era: ${{ fromJSON(needs.build-ubuntu-X64.outputs.eras) }}
-        cardano_node_version: ["8.9.4", "8.12.2", "8.11.0-pre", "8.12.0-pre"]
+        cardano_node_version:
+          ["8.9.4", "8.12.2", "9.0.0", "8.11.0-pre", "8.12.0-pre"]
         hard_fork_latest_era_at_epoch: [0]
         run_id: ["#1"]
         extra_args: [""]