test: write test in JavaScript (#108)

* test: map imported module from the distribution files

* chore: remove @jest/globals, @types/jest, and ts-jest from dependencies

* test: modify test files to JavaScript

* test: remove `testMatch` option in Jest (redundant)

* build: remove `tsconfig.eslint.json`

* ci(test): set `--experimental-vm-modules` only on `Test Package` step instead

tsconfig.json

@@ -12,6 +12,5 @@
     "target": "ES2022",
     "skipLibCheck": true
   },
-  "include": ["src"],
-  "exclude": ["**/*.test.*"]
+  "include": ["src"]
 }