.github/workflows/ci.yml in rubocop-sorbet-0.8.3 vs .github/workflows/ci.yml in rubocop-sorbet-0.8.4

@@ -9,11 +9,11 @@
   test:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.0", "3.1", "3.2", "3.3"]
+        ruby: ["3.1", "3.2", "3.3"]
     name: Test Ruby ${{ matrix.ruby }}
     steps:
       - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
@@ -31,11 +31,16 @@
     steps:
       - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.2
           bundler-cache: true
+      # This is just to ensure the default config is valid. The target is intentionally set
+      # to a directory that doesn't contain any .rb or .rbi files.
+      - name: Validate default config
+        run: |
+          bin/rubocop --config config/rbi.yml config
+          bin/rubocop --config config/default.yml config -r rubocop-sorbet
       - name: Lint Ruby files
         run: bin/rubocop
       - name: Verify documentation is up to date
         run: bundle exec rake generate_cops_documentation