Update dependency go to v1.25.3

Generated by renovateBot

Author: renovate[bot]

.github/workflows/buildtest.yaml

@@ -44,7 +44,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v6
         with:
-          go-version: 1.25.0
+          go-version: 1.25.3
 
       - name: Set up gotestfmt
         run: go install github.com/gotesttools/gotestfmt/v2/cmd/gotestfmt@latest