Revert "Update config.yaml"

Somehow Bazel 9rc1 is broken vs. rolling

This reverts commit fa80dd6.

Author: alexeagle

.aspect/workflows/config.yaml

@@ -26,6 +26,6 @@ tasks:
       name: Bazel 9
       id: bazel-9
       env:
-        USE_BAZEL_VERSION: 9.*
+        USE_BAZEL_VERSION: rolling
 notifications:
   github: {}