build.yml in berkeley_library-logging-0.2.2

- old
+ new

@@ -4,10 +4,10 @@
   test:
     strategy:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, macos-latest ]
-        ruby-version: [ '2.7', '3.0' ]
+        ruby: [ '2.7', '3.0' ]
     runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v2
       - uses: ruby/setup-ruby@v1