Add env variable for rspec-rails

Author: JonRowe

ci/.github/workflows/ci.yml

@@ -10,6 +10,8 @@ on:
       - '*'
 env:
   RSPEC_CI: true
+  # This tells rspec-rails what branch to run in ci
+  RSPEC_VERSION: '= 3.11.0.pre'
 jobs:
   test:
     name: Ruby ${{ matrix.ruby }} ${{ matrix.name_extra || '' }}