docs: update changelog for v2.7.67 [skip ci]

Author: actions-user

CHANGELOG.md

@@ -1,4 +1,14 @@
 # 变更日志
+## [2.7.67] - 2025-06-14
+
+### 修复
+- fix: memory leak. Should clean up dialogue info after session closed
+
+### 其他变更
+- chore: update version to 2.7.67 [skip ci]
+- docs: update changelog for v2.7.66 [skip ci]
+- chore: update version to 2.7.66 [skip ci]
+
 ## [2.7.66] - 2025-06-14
 
 ### 其他变更