Update docs.yaml

Author: aboudreault

docs.yaml

@@ -22,7 +22,7 @@ sections:
       CASS_DRIVER_NO_CYTHON=1 python setup.py build_ext --inplace --force
 versions:
   - name: '3.15'
-    ref: '26191f2f'
+    ref: '2ce0bd97'
   - name: '3.14'
     ref: '9af8bd19'
   - name: '3.13'