[python_lambda] fetch artifact from github action workflow

Author: florentinl

utils/scripts/load-binary.sh

@@ -300,18 +300,7 @@ elif [ "$TARGET" = "python_lambda" ]; then
     assert_version_is_dev
     assert_target_branch_is_not_set
 
-    rm -rf datadog-lambda-python/
-
-    git clone https://github.com/DataDog/datadog-lambda-python.git
-    cd datadog-lambda-python
-    echo "Checking out the datadog_lambda ref"
-    git log -1 --format=%H
-
-    # do not use `--depth 1`, setuptools_scm, does not like it
-    git clone https://github.com/DataDog/dd-trace-py.git
-    cd dd-trace-py
-    echo "Checking out the ddtrace ref"
-    git log -1 --format=%H
+    get_github_action_artifact "DataDog/datadog-lambda-python" "build_layer.yml" "main" "datadog-lambda-python-3.13-amd64.zip"
 
 else
     echo "Unknown target: $1"