fix: Increase trino test nodes from 6 to 8

Here we go again

Should hopefully fix "0/6 nodes are available: 1 Insufficient memory, 6 Insufficient cpu. preemption: 0/6 nodes are available: 6 No preemption victims found for incoming pod."

Author: sbernauer

catalog/operator-tests.yaml

@@ -293,7 +293,7 @@
   display_name: Trino Operator
   git_repo: trino-operator
   spec:
-    node-count: 6 # The Trino tests need more resources than others
+    node-count: 8 # The Trino tests need more resources than others
   platforms:
     - id: replicated-kind
       spec: