Add Unicode-3.0 to acceptable licenses for cargo deny.

Test: cargo deny check
Change-Id: Ieb31c569b267c78eabd9cb027c9a5b24d15947db
diff --git a/pseudo_crate/deny.toml b/pseudo_crate/deny.toml
index a913d1c..a7f8f06 100644
--- a/pseudo_crate/deny.toml
+++ b/pseudo_crate/deny.toml
@@ -106,6 +106,7 @@
     "MIT",
     "MPL-2.0",
     "OpenSSL",
+    "Unicode-3.0",
     "Unicode-DFS-2016",
     "Zlib",
     #"MIT",