Add note about automatic analysis to CHANGELOG

Author: sophio-japharidze-sonarsource

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## 4.30
 
 * Increase minimal supported VSCode version to 1.99.3
+* Introduce ability to disable automatic (on-the-fly) analysis
 * Stability improvements due to backend initialization refactoring
 * Update CFamily analyzer 6.70 -> [6.71](https://sonarsource.atlassian.net/issues/?jql=project%20%3D%2010166%20AND%20fixVersion%3D21832%20ORDER%20BY%20priority%20DESC%2C%20key%20ASC)
 * Update Java Symbolic Execution analyzer 8.16 -> [8.16.1](https://sonarsource.atlassian.net/issues/?jql=fixVersion%20%3D%2022339%20ORDER%20BY%20created%20ASC)