* test: remove unused spy
* refactor: add "@typescript-eslint/no-explicit-any" for avoiding lint error
* test: exclude *.case.test.ts files from vitest
These special files are used to share test cases between different modules or runtime environments.
* shared among multiple routers
* shared by renderToString and renderToDom
* test: rename helper/css/common.test.tsx to helper/css/common.case.test.tsx
* test: add router/common.case.test.ts
* test: remove redundant skip field
* test(vitest): replace `jest` with `vitest` for core tests
* test(fastly): `jest` -> `vitest`, correct env for fastly
* test(jest): remove `jest-environment-miniflare` as dep
* test(lagon): configure `lagon` tests to run on `vitest`
* test(lambda): `jest` -> `vitest`
* test(lambda-edge): `jest` -> `vitest`
* test(node): `jest` -> `vitest`
* test(wrangler): `jest` -> `vitest`
* chore(deps): remove `jest` and `ts-jest` from deps
* test(vitest): add `yarn coverage` for checking coverage
* test(fastly): fix check for `globalThis.crypto`
* test(handler): fix stray `.only`
* test(lagon): change env file back to original path
* test(fastly): go back to `jest` until `vitest` has support for fastly env
* test(fastly): remove hack for the `crypto` global from the test
