rename CI action

Author: jan-janssen

.github/workflows/pipeline.yml

@@ -107,7 +107,7 @@ jobs:
         papermill pyiron_base.ipynb pyiron_base_out.ipynb -k "python3"
         papermill universal_workflow.ipynb universal_workflow_out.ipynb -k "python3"
 
-  book:
+  documentation:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4