Merge pull request #154582 from cockroach-teamcity/crdb-releases-yaml-update-release-24.3

Author: rail

pkg/testutils/release/cockroach_releases.yaml

@@ -41,3 +41,6 @@
 "25.3":
   latest: 25.3.2
   predecessor: "25.2"
+"25.4":
+  latest: 25.4.0-beta.1
+  predecessor: "25.3"