doc: add CHANGELOG entry

Signed-off-by: hainenber <[email protected]>

Author: hainenber

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## Fixes
 
 - `[jest-runtime]` Fix issue where user cannot utilize dynamic import despite specifying `--experimental-vm-modules` Node option ([#15842](https://github.com/jestjs/jest/pull/15842))
+- `[jest-config]` Fix issue where user cannot toggle `collectCoverage` at project level ([#15588](https://github.com/jestjs/jest/issues/15588))
 
 ## 30.2.0