Update Go version to 1.25 in CI workflow

Author: claude

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.22'
+          go-version: '1.25'
 
       - name: Build
         run: go build ./...