rspec.yml in csb-0.7.0

- old
+ new

@@ -13,20 +13,16 @@
       BUNDLE_RETRY: 3
       BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["2.6", "2.7", "3.0", "3.1"]
-        gemfile: ["rails60", "rails61", "rails70"]
+        ruby: ["3.0", "3.1", "3.2"]
+        gemfile: ["rails61", "rails70"]
         exclude:
-          - ruby: "2.6"
-            gemfile: "rails70"
           - ruby: "3.1"
-            gemfile: "rails60"
-          - ruby: "3.1"
             gemfile: "rails61"
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}