Update ruby.yml

Author: gaorlov

.github/workflows/ruby.yml

@@ -43,10 +43,6 @@ jobs:
             rails: "4.1"
           - ruby: "2.7"
             rails: "4.2"
-        include:
-          - rails: "master"
-            continue-on-error: true
-
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby