Test aiida-core pre-release v2.8.0rc2

Author: agoscinski

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.10', '3.12']
-        aiida-core-version: ['2.8.0rc0']
+        aiida-core-version: ['2.8.0rc2']
 
     services:
       rabbitmq: