Upgrade rules_shell to v0.6.1 This project was upgraded with external_updater. Usage: tools/external_updater/updater.sh update external/bazelbuild-rules_shell For more info, check https://cs.android.com/android/platform/superproject/main/+/main:tools/external_updater/README.md Bug: 495395547 Test: TreeHugger Change-Id: If0016f4478b96dc2131e99915bb0cfec5ad606c0