fix(changelog): fix link format of #12264 (#12293)

Author: chentsulin

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 ### Fixes
 
-- `[matcher-utils]` Correct diff for expected asymmetric matchers (#12264)[https://github.com/facebook/jest/pull/12264]
+- `[matcher-utils]` Correct diff for expected asymmetric matchers ([#12264](https://github.com/facebook/jest/pull/12264))
 - `[expect]` Add a fix for `.toHaveProperty('')` ([#12251](https://github.com/facebook/jest/pull/12251))
 - `[jest-environment-node]` Add `atob` and `btoa` ([#12269](https://github.com/facebook/jest/pull/12269))