Add changelog entry

Signed-off-by: Juraci Paixão Kröhling <juraci@kroehling.de>
open-telemetry · Oct 25, 2021 · 4f7ff00 · 4f7ff00
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commit 4f7ff00
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Unreleased
 
+## 🛑 Breaking changes 🛑
+- Removed `configauth.HTTPClientAuthenticator` and `configauth.GRPCClientAuthenticator` in favor of `configauth.ClientAuthenticator` (#4255)
+
 ## 🛑 Breaking changes 🛑
 
 - Rename `parserprovider.MapProvider` as `config.MapProvider` (#4178)