Update protobuf to 2.27.1

Test: cd external/rust/crates && atest --host -c
Change-Id: Iaae5fc30f1bd87b2d4a92ee1ae07bc18e1bc50d4
diff --git a/Android.bp b/Android.bp
index d7d1318..78e5734 100644
--- a/Android.bp
+++ b/Android.bp
@@ -30,7 +30,7 @@
     host_supported: true,
     crate_name: "protobuf",
     cargo_env_compat: true,
-    cargo_pkg_version: "2.25.1",
+    cargo_pkg_version: "2.27.1",
     srcs: [
         "src/lib.rs",
         ":copy_protobuf_build_out",