chore(maintenance): add overwrite to artifact arn in layer pipeline (#1970)

Author: dreamorosi

.github/workflows/reusable_deploy_layer_stack.yml

@@ -97,6 +97,7 @@ jobs:
           path: ./cdk-layer-stack/* # NOTE: upload-artifact does not inherit working-directory setting.
           if-no-files-found: error
           retention-days: 1
+          overwrite: true
       - name: CDK deploy canary
         run: npm run cdk -w layers -- deploy --app cdk.out --context region=${{ matrix.region }} 'CanaryStack' --require-approval never --verbose --outputs-file cdk-outputs.json
   update_layer_arn_docs: