ci: Update Go version and test result handling in CI

Update Go workflow configuration

- Modify test command to store output in `test-results.json`
- Adjust publishing step to reference `test-results.json` directly

.github/workflows/go.yml

@@ -33,4 +33,4 @@ jobs:
         if: always()
         with:
           files: |
-            test-results/**/*.json
+            test-results.json