fix(kubectl): update Go build dependency to ~1.25.0

Kubernetes go.mod requires Go 1.25.0. Update build dependency
pin from ~1.24.4 to match upstream requirements.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: timothytlewis

projects/kubernetes.io/kubectl/package.yml

@@ -10,7 +10,7 @@ provides:
 
 build:
   dependencies:
-    go.dev: ~1.24.4
+    go.dev: ~1.25.0
     gnu.org/coreutils: ^9.1.0
     gnu.org/bash: ^5.1
     rsync.samba.org: '*'