fix link

Author: bradh352

Diff for: changelog.md

@@ -9,7 +9,7 @@ This is a security release.
 
 Security:
 * CVE-2025-31498. A use-after-free bug has been uncovered in read_answers() that
-  was introduced in v1.32.3.  Please see https://github.com/c-ares/c-ares/security/advisories/GHSA-6hxc-62jh-p29v
+  was introduced in v1.32.3.  Please see [CVE-2025-31498](https://github.com/c-ares/c-ares/security/advisories/GHSA-6hxc-62jh-p29v)
 
 Changes:
 * Restore Windows XP support. [PR #958](https://github.com/c-ares/c-ares/pull/958)