fix: farm hmr error

[ErKeLost]

@sorrycc hi , Farm api and hmr usage issues are solved in the new version, now you can run the full benchmark.

Again, farm enables caching by default when starting the server or build, and the time it takes to write files is huge, so according to mako benchmark project, we need to close caching in the farm test. The time to write to the server is about 40% of the project startup time. I hope you can retest this benchmark. ,grateful

In addition, I think there is a problem with all existing benchmark tests (this also exists in the farm benchmark test. We will summarize it after adding mako test in the future), which is the different target time and backup size. I think we should establish a standard in the future. For specific enviroment (browser or node), We may add various polyfills according to different products. we can establish a unified standard based on https://github.com/browserslist/browserslist and conduct benchmark tests for specific environments.

#1