test: map imported module from the distribution files

jest.config.json

@@ -10,10 +10,7 @@
   },
   "extensionsToTreatAsEsm": [".ts", ".mts"],
   "moduleNameMapper": {
-    "^(\\.{1,2}/.*)\\.mjs$": "$1.mts"
+    "^(\\.{1,2}/.*)\\.mjs$": "<rootDir>/dist/$1.mjs"
   },
-  "testMatch": ["**/*.test.ts"],
-  "transform": {
-    "^.+\\.m?ts$": ["ts-jest", { "useESM": true }]
-  }
+  "testMatch": ["**/*.test.ts"]
 }

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",