chore: update Go version requirements in CI workflow

- Update matrix Go version from 1.25 to 1.25.1 to match go.mod
- Specify golangci-lint v1.65.1 explicitly (supports Go 1.25+)
- Add skip-cache to force fresh download and avoid cached v1.64.8

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ['1.25']
+        go-version: ['1.25.1']
 
     steps:
       - name: Checkout code
@@ -30,7 +30,8 @@ jobs:
       - name: Run linter
         uses: golangci/golangci-lint-action@v6
         with:
-          version: latest
+          version: v1.65.1
+          skip-cache: true
 
       - name: Run tests
         run: |