Merge #148672

148672: release: released CockroachDB version v25.3.0-alpha.3. Next version: v25.3.0-alpha.4 r=rail a=cockroach-teamcity


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


Co-authored-by: Justin Beaver <[email protected]>

Author: craig[bot]

pkg/build/version.txt

@@ -1 +1 @@
-v25.3.0-alpha.3
+v25.3.0-alpha.4