docs: update CHANGELOG for PR #1807

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Signed-off-by: Haotian Zhang <928016560@qq.com>

CHANGELOG.md

@@ -10,3 +10,4 @@
 - [test: add unit tests for ConfigurationModifier and fix TsfConsul report logic](https://github.com/Tencent/spring-cloud-tencent/pull/1802)
 - [fix: prepend context-path to contract reporter API paths](https://github.com/Tencent/spring-cloud-tencent/pull/1803)
 - [feat: support overrideHost configuration for ratelimit, event reporter and stat modules](https://github.com/Tencent/spring-cloud-tencent/pull/1804)
+- [fix: split contract base-package for springdoc scan](https://github.com/Tencent/spring-cloud-tencent/pull/1807)