[turbopack] Add execution tests to demonstrate a bug (#80918)
## Add tests for top level `this` behavior in CJS and ESM modules
### What?
Added two test cases to verify the behavior of `this` in CommonJS and ESM modules:
- CJS test verifies that `this` should be equal to `exports`
- ESM test verifies that `this` should be equal to `globalThis` WHICH IS A BUG, it should be `undefined`
