specifically request beta 4 or newer

Author: neutrinoceros

.github/workflows/bleeding-edge.yaml

@@ -40,7 +40,7 @@ jobs:
         # the '-dev' suffix allows to use alphas and betas if no final release is available yet
         # this version should be upgraded as often as possible, typically once a year when numpy
         # and Cython are known to be compatible
-        python-version: '3.11-dev'
+        python-version: '>=3.11.0-beta.4' # to be replaced with '3.11-dev'
 
     - name: Install dependencies
       run: |