Merge pull request #1666 from spantaleev/dependabot/github_actions/actions/checkout-3

Bump actions/checkout from 2.4.0 to 3

.github/workflows/matrix.yml

@@ -11,6 +11,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: ⤵️ Check out configuration from GitHub
-        uses: actions/checkout@v2.4.0
+        uses: actions/checkout@v3
       - name: 🚀 Run yamllint
         uses: frenck/action-yamllint@v1.1.2