[Release] Update CHANGELOGs for 10.6.0 release (#10852)

Crashlytics/CHANGELOG.md

@@ -1,4 +1,4 @@
-# Unreleased
+# 10.6.0
 - [added] Added dependency on Firebase Sessions SDK to power future metrics and debugging features in Crashlytics
 
 # 10.4.0

FirebaseAppDistribution/CHANGELOG.md

@@ -1,4 +1,4 @@
-# Unreleased
+# 10.6.0
 - [fixed] Fixed bug where testers were sent to the wrong URL when signing in (#10772).
 
 # 10.2.0

FirebasePerformance/CHANGELOG.md

@@ -1,4 +1,4 @@
-# Unreleased
+# 10.6.0
 - [added] Added dependency on Firebase Sessions SDK to power future metrics and debugging features in Performance Monitoring.
 - [changed] Changed definition of sessions, as Performance Monitoring now depends on the new Firebase Sessions SDK.
 

Firestore/CHANGELOG.md

@@ -1,5 +1,5 @@
 
-# Unreleased
+# 10.6.0
 - [fixed] Fix a potential high memory usage issue.
 
 # 10.5.0