[google_sign_in] fix merge error in CHANGELOG (flutter#3153)

Chris Yang · Egor · commit 257a37473268 · 2020-11-20T14:07:38.000+03:00
diff --git a/packages/google_sign_in/google_sign_in/CHANGELOG.md b/packages/google_sign_in/google_sign_in/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 ## 4.5.4
 
-* Update android compileSdkVersion to 29.
+* Keep handling deprecated Android v1 classes for backward compatibility.
 
 ## 4.5.3
 
