Fix android build: add cast for formatting · project-chip/connectedhomeip@0e32b82

The template is not valid. /home/runner/work/connectedhomeip/connectedhomeip/./.github/actions/bootstrap-cache/action.yaml (Line: 13, Col: 15): hashFiles('scripts/setup/*, third_party/pigweed/**') failed. Fail to hash files under directory '/home/runner/work/connectedhomeip/connectedhomeip'

`pre` execution is not supported for local action from './.github/actions/checkout-submodules-and-bootstrap'