Merge pull request #211 from rabbitmq/dependabot/github_actions/2.x.x-stable/actions/checkout-3

Bump actions/checkout from 2 to 3

Author: acogoluegnes

.github/workflows/test-linux.yml

@@ -19,7 +19,7 @@ jobs:
           - 5672:5672
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up JDK
         uses: actions/setup-java@v3
         with: