servo: Merge #18903 - Don't report smallbitvec as an error (from servo:jdm-patch-2); r=emilio

This should make dependencyCI turn green again.

Source-Repo: https://github.com/servo/servo
Source-Revision: ec24a40ab6b0d2022ff0b09057910105fdea8a6a

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : aec0a2ff18fd42e9d7fdd7a99beb5604b07f8cc7

servo/dependencyci.yml

@@ -3,4 +3,8 @@ platforms:
     charade:
       tests:
         removed: skip
-        unmaintained: skip
+        unmaintained: skip # https://github.com/w3c/web-platform-tests/issues/6269
+  cargo:
+    smallbitvec:
+      tests:
+        unlicensed: skip # https://github.com/librariesio/libraries.io/issues/1762