ci.yml in karafka-1.4.2

- old
+ new

@@ -6,19 +6,21 @@
     - cron:  '0 1 * * *'
 
 jobs:
   specs:
     runs-on: ubuntu-latest
+    needs: diffend
     strategy:
       fail-fast: false
       matrix:
         ruby:
+          - '3.0'
           - '2.7'
           - '2.6'
           - '2.5'
         include:
-          - ruby: '2.7'
+          - ruby: '3.0'
             coverage: 'true'
     steps:
       - uses: actions/checkout@v2
       - name: Install package dependencies
         run: "[ -e $APT_DEPS ] || sudo apt-get install -y --no-install-recommends $APT_DEPS"
@@ -38,9 +40,29 @@
         run: docker-compose up -d
       - name: Run all tests
         env:
           GITHUB_COVERAGE: ${{matrix.coverage}}
         run: bundle exec rspec
+
+  diffend:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.0
+      - name: Install latest bundler
+        run: gem install bundler --no-document
+      - name: Install Diffend plugin
+        run: bundle plugin install diffend
+      - name: Bundle Secure
+        run: bundle secure
+
   coditsu:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
     steps: