protocols/request-response: Add forgotten changelog entry

mxinden · mxinden · commit 6400719ae958 · 2021-01-21T15:40:26.000+01:00
diff --git a/protocols/request-response/CHANGELOG.md b/protocols/request-response/CHANGELOG.md
@@ -1,5 +1,8 @@
 # 0.9.1 [unreleased]
 
+- Make `is_pending_outbound` return true on pending connection.
+  [PR 1928](https://github.com/libp2p/rust-libp2p/pull/1928).
+
 # 0.9.0 [2021-01-12]
 
 - Update dependencies.
