dockerfile/test/android_ndk.current_version

us-docker.pkg.dev/grpc-testing/testing-images-public/android_ndk:47e2befd3ceab97fa3e8ad5b8499b684380d624d@sha256:256ff2bb8fd6c6921cd7653f79fa495669c6466f78df96f71867f89f6d487ff3