improve: fork runtime

Author: n9te9

.github/workflows/test.yml

@@ -34,3 +34,6 @@ jobs:
 
       - name: Test
         run: go test -race -count=1 ./...
+
+      - name: Sandbox isolation stress
+        run: go test -run 'TestRuntime_RestoreN_' -race -count=10 -shuffle=on -v .