Update github actions checkout to v3

Author: timbeccue

.github/workflows/deployment.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE
     - name: Check out repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
 
     - name: Configure AWS Credentials
       uses: aws-actions/configure-aws-credentials@v1-node16