Merge pull request #264 from rspec/3-preview-2-4-0

3 preview 2 for 4.0

Author: JonRowe

ci/.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
         ruby:
-          - 3.0.0-preview1
+          - 3.0.0-preview2
           - 2.7
           - 2.6
           - 2.5