Change databinding dependent lib artifact to a directory

[arunkumar9t2]

Dependent lib artifact is supposed to be a directory but was registered as a file. This is an error in Bazel 7 due to --incompatible_disallow_unsound_directory_outputs which will be enforced in Bazel 8.

Ref

Bazel needs to know whether an artifact is a file or a directory before its contents are produced, and coverage.dat is declared as a file. Before Bazel 7, producing a directory where a file is expected was tolerated, but broken in subtle ways. Bazel 7 forbids it by default (--incompatible_disallow_unsound_directory_outputs) and Bazel 8 will not allow it at all.

[ahumesky]

from an internal test, the _utils.copy_file(...) below at 127 fails with:

	File "android_binary_internal.bzl", line 724, column 35, in _impl
		return processing_pipeline.run(ctx, java_package, _PROCESSING_PIPELINE)
	File "rules_android/rules/processing_pipeline.bzl", line 86, column 23, in _run
		info = execute(ctx, **target_ctx)
	File "rules_android/rules/android_binary_internal/impl.bzl", line 200, column 37, in _process_data_binding
		value = data_binding.process(
	File "rules_android/rules/data_binding.bzl", line 272, column 55, in _process
		dep_lib_artifacts = _setup_dependent_lib_artifacts(ctx, output_dir, deps)
	File "rules_android/rules/data_binding.bzl", line 130, column 33, in _setup_dependent_lib_artifacts
		_utils.copy_file(ctx, artifact, dep_lib_artifact)
	File "rules_android/rules/utils.bzl", line 214, column 13, in _copy_file
		fail("Cannot use copy_file with directories")
Error in fail: Cannot use copy_file with directories

did this work in your local testing?