Update changelog for elixir-editors#411

Author: axelson

CHANGELOG.md

@@ -3,6 +3,8 @@
 Bug Fixes:
 - Fix multiple issues with text synchronization (thanks [Łukasz Samson](https://github.com/lukaszsamson)) [#411](https://github.com/elixir-lsp/elixir-ls/pull/411)
 - Purge consolidated protocols before compilation (thanks [Łukasz Samson](https://github.com/lukaszsamson)) [#406](https://github.com/elixir-lsp/elixir-ls/pull/406)
+- Don't add stream_data to release archive (thanks [Tomasz Kowal](https://github.com/tomekowal)) [#417](https://github.com/elixir-lsp/elixir-ls/pull/417)
+  - Fixes bug introduced in [#411](https://github.com/elixir-lsp/elixir-ls/pull/411) so it doesn't affect a released version of ElixirLS
 
 ### v0.6.2: 15 November 2020