Add starlarkjson module am: e4e6f0d19c am: 46b7813df6 am: 3d07d8b54e am: 779abe89eb am: 3de57e0bcb

Original change: https://android-review.googlesource.com/c/platform/external/starlark-go/+/2552135

Change-Id: Iddea2872a5a920f85dd53585555b14ac468a8e06
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>