Update actions/checkout action to v3

Author: renovate-bot

.github/workflows/ci-cd.yml

@@ -6,7 +6,7 @@ jobs:
     name: Continuous Integration
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v2

.github/workflows/codeql-analysis.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           # We must fetch at least the immediate parents so that if this is
           # a pull request then we can checkout the head.