dd-sts for system-tests

Author: rithikanarayan

.github/workflows/system_tests.yml

@@ -28,13 +28,10 @@ jobs:
   system-tests:
     needs:
       - build
-    uses: DataDog/system-tests/.github/workflows/system-tests.yml@main
-    secrets:
-      DD_API_KEY: ${{ secrets.DD_API_KEY }}
-      TEST_OPTIMIZATION_API_KEY: ${{ secrets.TEST_OPTIMIZATION_API_KEY }}
+    uses: DataDog/system-tests/.github/workflows/system-tests.yml@1e5d6b7096279ca43ce4826fda3cc805635b63c1
     permissions:
       contents: read
-      packages: write
+      id-token: write
     with:
       library: python_lambda
       binaries_artifact: binaries