(maint) Update actions/checkout action to v3

Author: renovate-bot

.github/workflows/build.yml

@@ -41,7 +41,7 @@ jobs:
 
     steps:
       - name: Checkout the repository 
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Fetch all tags and branches
         run: git fetch --prune --unshallow
       - uses: actions/[email protected]

.github/workflows/codeql-analysis.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         fetch-depth: 0