Fix released protoc path

PiperOrigin-RevId: 514551233
diff --git a/pkg/BUILD.bazel b/pkg/BUILD.bazel
index 1cb49ed..da5ccf6 100644
--- a/pkg/BUILD.bazel
+++ b/pkg/BUILD.bazel
@@ -68,6 +68,7 @@
     name = "protoc_files",
     srcs = ["bin/protoc"],
     attributes = pkg_attributes(mode = "0555"),
+    prefix = "bin/",
     visibility = ["//visibility:private"],
 )