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

package.json

@@ -5,7 +5,7 @@
   "scripts": {
     "bundle": "tsc && ncc build dist/main.mjs -o main",
     "check": "sort-package-json && prettier --write . !main !README.md && eslint src",
-    "test": "jest"
+    "test": "tsc && jest"
   },
   "dependencies": {
     "@actions/core": "^1.10.1",
@@ -13,8 +13,6 @@
     "@actions/io": "^1.1.3"
   },
   "devDependencies": {
-    "@jest/globals": "^29.7.0",
-    "@types/jest": "^29.5.10",
     "@types/node": "^20.10.4",
     "@typescript-eslint/eslint-plugin": "^6.13.2",
     "@typescript-eslint/parser": "^6.13.2",
@@ -25,7 +23,6 @@
     "jest": "^29.7.0",
     "prettier": "^3.1.0",
     "sort-package-json": "^2.6.0",
-    "ts-jest": "^29.1.1",
     "typescript": "^5.3.3"
   },
   "packageManager": "yarn@4.0.2"