Build Rubinius 4.14

Author: eregon

.github/workflows/build.yml

@@ -192,7 +192,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-16.04, ubuntu-18.04, macos-latest ]
-        ruby: [ rubinius-4.13 ]
+        ruby: [ rubinius-4.14 ]
     runs-on: ${{ matrix.os }}
     steps:
     - name: Set tag name