jest-e2e-ssr-env: overriding Webpack config's context is problematic

[birdofpreyru]

react-utils/src/shared/utils/jest/E2eSsrEnv.ts

Line 64 in 343dffe

context: this.testFolder,

e.g. a bunch of path aliases in the default config are defined relative to the context path, and changing the context for test efficiently breaks the out-of-the-box resolution of aliased paths, unless explicitly overridden.