Update rules_nodejs deps to 0.16.4

rules_nodejs 0.16.4 introduced web_package rule.
See https://github.com/bazelbuild/rules_nodejs/releases/tag/0.16.4

Closes #362

PiperOrigin-RevId: 226189547
diff --git a/package.bzl b/package.bzl
index dcc75a3..86bf207 100644
--- a/package.bzl
+++ b/package.bzl
@@ -38,9 +38,8 @@
     _maybe(
         http_archive,
         name = "build_bazel_rules_nodejs",
-        # TODO(alexeagle): update after next release
-        urls = ["https://github.com/bazelbuild/rules_nodejs/archive/5efe8067c83ce81273dbd1f69303ad8cee88e5de.zip"],
-        strip_prefix = "rules_nodejs-5efe8067c83ce81273dbd1f69303ad8cee88e5de",
+        urls = ["https://github.com/bazelbuild/rules_nodejs/archive/0.16.4.zip"],
+        strip_prefix = "rules_nodejs-0.16.4",
     )
 
     # ts_web_test depends on the web testing rules to provision browsers.