Make the fix_line_endings tool usable by consumers

tools/refresh_clangd/BUILD.bazel

@@ -0,0 +1,10 @@
+# Copyright 2025 Steven Le Rouzic
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+load("@hedron_compile_commands//:refresh_compile_commands.bzl", "refresh_compile_commands")
+
+refresh_compile_commands(
+    name = "refresh_clangd",
+    targets = "//...",
+)