6fd9370 fixes a FTBFS issue by adding a no-op. We should remove this patch and fix our own code that requires the no-op.

• fix(patch): re-add experimental_fetch member after upstream cleanup

Upstream removed the experimental_fetch field from EnvironmentOptions,
but Electron's patch still registers --experimental-fetch as a CLI
option bound to that field. Re-add the member so the option compiles.

Ref: nodejs/node#62759