Use executable in place of file.

`ctx.executable` will automatcially propagate runfiles when passed as a
tool. This is relevant for bazel's rustfmt which is a thin binary that
spawns a subprocess to call the actual rustfmt binary from runfiles.

PiperOrigin-RevId: 845940833

Author: thunderseethe

cc_bindings_from_rs/bazel_support/cc_bindings_from_rust_rule.bzl

@@ -208,11 +208,11 @@ def _generate_bindings(ctx, target, basename, inputs, args, rustc_env, proto_cra
         ctx.actions.run(
             outputs = outputs,
             inputs = depset(
-                [ctx.file._clang_format, ctx.file._rustfmt, ctx.file._rustfmt_cfg],
+                [ctx.file._rustfmt_cfg],
                 transitive = [inputs],
             ),
             env = rustc_env | verbose_log_env | _rustc_lib_env(ctx),
-            tools = [toolchain.binary],
+            tools = [toolchain.binary, ctx.executable._rustfmt, ctx.executable._clang_format],
             executable = ctx.executable._process_wrapper,
             mnemonic = "CcBindingsFromRust",
             progress_message = "Generating C++ bindings from Rust: %s" % h_out_file,

cc_bindings_from_rs/bazel_support/toolchain.bzl

@@ -13,7 +13,7 @@ def _cc_bindings_from_rs_toolchain_impl(ctx):
     return [
         platform_common.ToolchainInfo(
             cc_bindings_from_rs_toolchain_info = CcBindingsFromRustToolchainInfo(
-                binary = ctx.file.binary,
+                binary = ctx.executable.binary,
             ),
         ),
     ]