Update use of bazel_skylib run_binary to use modern naming.

Author: UebelAndre

tools/bazel/rust_cxx_bridge.bzl

@@ -1,4 +1,5 @@
-# buildifier: disable=module-docstring
+"""CXX Bridge rules."""
+
 load("@bazel_skylib//rules:run_binary.bzl", "run_binary")
 load("@rules_cc//cc:defs.bzl", "cc_library")
 
@@ -31,11 +32,11 @@ def rust_cxx_bridge(name, src, deps = [], **kwargs):
             src + ".cc",
         ],
         args = [
-            "$(location %s)" % src,
+            "$(execpath %s)" % src,
             "-o",
-            "$(location %s.h)" % src,
+            "$(execpath %s.h)" % src,
             "-o",
-            "$(location %s.cc)" % src,
+            "$(execpath %s.cc)" % src,
         ],
         tool = "@cxx.rs//:codegen",
         **kwargs