release-25.4: released CockroachDB version v25.4.0-beta.1. Next version: v25.4.0-beta.2

Release note: None
Epic: None
Release justification: non-production (release infra) change.

Author: cockroach-teamcity

pkg/build/version.txt

@@ -1 +1 @@
-v25.4.0-beta.1
+v25.4.0-beta.2